Entities

expressionlast summoned entitysince 1.7.0

The creature the last summon of this trigger made

set {_boss} to last summoned entity

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expressionevent entitysince 1.7.0

The creature the current event is about

on mob spawn:
    set {_mob} to event entity
    set name of {_mob} to "&cWild thing"

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expressionvictim entity / attacker entitysince 1.7.0

In on entity damage: the creatures themselves, not their names

push victim entity backward with force 0.8

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expressionclicked entitysince 1.7.0

In on entity click

on entity click:
    push clicked entity upward with force 0.6

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expressiontarget entity of <who>since 1.7.0

What they are looking at, up to 50 blocks away

set {_looking} to target entity of player
if {_looking} is set:
    send "&7You are looking at &f%{_looking}%"

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expressionname of <entity> / health of <entity>since 1.7.27

Read or set. How much health it can have is given when it is summoned: with health <n>

set name of {_boss} to "&c&lThe Boss"

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effectkill <who>since 1.7.0

Works on a player or an entity

kill arg.1 as player

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effectkill <who> as <who>since 1.7.39

The same, but the server takes it for a kill by the second one, a player or a creature: the death message names them, %event.killer% is them, and they get the drops, the experience and the credit other plugins give for a kill. kill arg.1 as player

kill arg.1 as player

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effectmake <creature> follow <who>since 1.7.17

It walks after them until told otherwise, or until either is gone. make <creature> stop following ends it. Needs a Paper server

command /pet:
    trigger:
        summon wolf named "&b%player%'s pet" at player
        set {%player%.pet} to last summoned entity
        make {%player%.pet} follow player

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effectmake <creature> walk to <location>since 1.7.17

It finds its own way there, if there is one. Needs a Paper server

command /callguard:
    trigger:
        summon iron golem at player
        make last summoned entity walk to location 10 blocks in front of player

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effectmake <creature> stay still / make <creature> move againsince 1.7.17

Takes away its own will, so it neither walks nor turns nor is pushed; and gives it back

command /statue:
    trigger:
        summon zombie named "&7Statue" at player silent
        make last summoned entity stay still

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effectmake <who> look at <location>since 1.7.37

Turn a player or a creature so that they face that place. The place is a location, x, y, z, or somebody: make player look at arg.1 looks them in the eyes. They stay where they are; only where they look changes

make player look at arg.1

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effectmake <who> look northsince 1.7.37

Turn them straight north, east, south or west, or make them look up or down

make player look north

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effectmake <who> ride <creature> / make <who> dismountsince 1.7.17

Seat a player, or another creature, on top of one

command /mount:
    trigger:
        summon horse at player
        make player ride last summoned entity

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effectmake <who> swing armsince 1.7.70

The movement of a hit, without hitting anything

make player swing arm

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effectdamage <who> by <n>since 1.7.0

Hurt by that much; 2 is one heart

damage tool of player by 25

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effectpush <who> upward / downward / forward / backward [with force <n>]since 1.7.0

Shove in a direction. forwards, backwards, upwards and downwards are read the same, and at speed <n> says what with force <n> does: push player forwards at speed 2

push player upward with force 1.2

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effectpush <who> towards <location> [with force <n>]since 1.7.0

Shove towards a place

push player towards {spawn} with force 0.8

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effectpush <who> away from <location> [with force <n>]since 1.7.67

Shove the other way: away from an explosion, a boss, a wall

push player away from {boss.place} with force 1.5

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effectpush <who> left / right [with force <n>]since 1.7.67

Shove sideways, as they stand

push player left with force 0.8

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expressionlaunch <who> [upward] [at speed <n>] [without fall damage]since 1.7.67

A push, upward unless another direction is named. With without fall damage the landing does not hurt, which is what a jump pad wants; push takes those words too

on right click:
    if block is "slime_block":
        launch player upward at speed 2 without fall damage

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effectmake <entity> target <who>since 1.7.0

Send a mob after someone

make {_boss} target player

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effectremove entity <entity>since 1.7.0

Make it disappear

summon zombie at player's location
set {_mob} to last summoned entity
wait 10 seconds
remove entity {_mob}

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effectremove all <type> within <n> blocks of <location>since 1.7.0

Clear out every creature of a kind nearby

remove all zombies within 20 blocks of player's location

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effectwith health <n>since 1.7.15

Its health, in half hearts, up to 2048. It starts at full health

summon iron golem named "&bGuardian" at player with health 400

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effectwith speed <n>since 1.7.15

How fast it moves, as a multiple of what is normal for it: 2 is twice as fast, 0.5 half

summon 5 zombie at player with speed 1.6

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effectwith damage <n>since 1.7.15

How hard it hits, in half hearts. Only creatures that attack have it

summon zombie named "&4Brute" at player with damage 20

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expressionholding <item>since 1.7.15

What it has in its hand

summon zombie at player holding iron sword enchanted with sharpness 3

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expressionwearing <item>, <item>since 1.7.15

Its armour; each piece goes where it belongs, and anything that is not armour goes on its head

summon zombie at player wearing diamond helmet, iron chestplate, iron boots

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expressiondropping <item>, <item>since 1.7.15

What it leaves behind when it dies, instead of what such a creature usually drops. dropping nothing for nothing at all

summon chicken named "&6Golden hen" at player dropping 3 gold ingot

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expressionglowing, silent, babysince 1.7.15

An outline that shows through walls; no sounds; a young one

summon villager at player glowing silent baby

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expressioninvisiblesince 1.7.17

It cannot be seen; what it holds and wears still can. Minecraft 1.16.3 or newer

summon armor stand at player invisible holding diamond sword

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expressionsmall, marker, with arms, without gravity, without base platesince 1.7.17

For an armor stand: half size; nothing can touch or select it; arms to hold things in; it floats where it was put; no stone plate under it. without gravity works on any creature

command /trophy:
    trigger:
        summon armor stand named "&6Champion" at player small with arms without base plate holding golden apple wearing diamond helmet

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effectset drops to <item>, <item>since 1.7.15

Replace what falls. set drops to nothing, or clear drops, for nothing

on entity death:
    if event.entity is "creeper":
        set drops to 3 gunpowder, 1 tnt

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effectadd <item> to dropssince 1.7.15

One more thing, on top of the rest

on entity death:
    if event.entity is "zombie":
        if chance of 10%:
            add 1 emerald to drops

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effectmake <who> shoot a <projectile>since 1.7.42

The same as shoot <projectile> from <who>, said the other way round. Add at speed <n>: make player shoot an arrow at speed 3

make player shoot a small fireball at speed 2

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expressionshoot <projectile> from <who>since 1.7.15

Launch an arrow, snowball, egg, fireball, small fireball, ender pearl, trident or the like, the way they are looking. Add with speed <n>: 1 is a gentle throw, 3 a fully drawn bow

on right click with blaze rod:
    if player is on cooldown "fireball":
        stop
    start cooldown "fireball" of 2 seconds
    shoot small fireball from player with speed 2

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Guide and examples

A mob or animal can be kept in a variable and told what to do, just like a player.

command /boss:
    permission: op
    trigger:
        summon zombie at player's location with health 100
        set {_boss} to last summoned entity
        set name of {_boss} to "&c&lThe Boss"
        make {_boss} target player

on entity damage:
    if attacker is "zombie":
        push victim entity backward with force 0.8

Syntax	Meaning
`last summoned entity`	The creature the last `summon` of this trigger made
`event entity`	The creature the current event is about
`victim entity` / `attacker entity`	In `on entity damage`: the creatures themselves, not their names
`clicked entity`	In `on entity click`
`target entity of <who>`	What they are looking at, up to 50 blocks away
`name of <entity>` / `health of <entity>`	Read or set. How much health it can have is given when it is summoned: `with health <n>`
`kill <who>`	Works on a player or an entity
`kill <who> as <who>`	The same, but the server takes it for a kill by the second one, a player or a creature: the death message names them, `%event.killer%` is them, and they get the drops, the experience and the credit other plugins give for a kill. `kill arg.1 as player`
`make <creature> follow <who>`	It walks after them until told otherwise, or until either is gone. `make <creature> stop following` ends it. Needs a Paper server
`make <creature> walk to <location>`	It finds its own way there, if there is one. Needs a Paper server
`make <creature> stay still` / `make <creature> move again`	Takes away its own will, so it neither walks nor turns nor is pushed; and gives it back
`make <who> look at <location>`	Turn a player or a creature so that they face that place. The place is a location, `x, y, z`, or somebody: `make player look at arg.1` looks them in the eyes. They stay where they are; only where they look changes
`make <who> look north`	Turn them straight `north`, `east`, `south` or `west`, or make them look `up` or `down`
`make <who> ride <creature>` / `make <who> dismount`	Seat a player, or another creature, on top of one
`make <who> swing arm`	The movement of a hit, without hitting anything
`damage <who> by <n>`	Hurt by that much; 2 is one heart
`push <who> upward / downward / forward / backward [with force <n>]`	Shove in a direction. `forwards`, `backwards`, `upwards` and `downwards` are read the same, and `at speed <n>` says what `with force <n>` does: `push player forwards at speed 2`
`push <who> towards <location> [with force <n>]`	Shove towards a place
`push <who> away from <location> [with force <n>]`	Shove the other way: away from an explosion, a boss, a wall
`push <who> left / right [with force <n>]`	Shove sideways, as they stand
`launch <who> [upward] [at speed <n>] [without fall damage]`	A push, upward unless another direction is named. With `without fall damage` the landing does not hurt, which is what a jump pad wants; `push` takes those words too
`make <entity> target <who>`	Send a mob after someone
`remove entity <entity>`	Make it disappear
`remove all <type> within <n> blocks of <location>`	Clear out every creature of a kind nearby

An entity prints as its name, or its type if it has none, so "%{_boss}%" works in text.
Everything in this table takes a player too: push player upward with force 1.2, kill arg.1. <who> means a player or an entity; <entity> means it only makes sense for one.
An entity is only good while it exists. Once it has died or its chunk has unloaded, acting on it does nothing. For that reason entities are for local variables, not saved ones.
remove all takes zombie, zombies, any other type, mobs (every hostile and passive mob) or entities (everything but players), up to 128 blocks away. Players are never removed.
Force is in blocks per tick: 0.5 is a nudge, 1.5 throws someone high into the air.

Creatures of your own. After the position, summon takes any of these, in any order:

Written	Effect
`with health <n>`	Its health, in half hearts, up to 2048. It starts at full health
`with speed <n>`	How fast it moves, as a multiple of what is normal for it: `2` is twice as fast, `0.5` half
`with damage <n>`	How hard it hits, in half hearts. Only creatures that attack have it
`holding <item>`	What it has in its hand
`wearing <item>, <item>`	Its armour; each piece goes where it belongs, and anything that is not armour goes on its head
`dropping <item>, <item>`	What it leaves behind when it dies, instead of what such a creature usually drops. `dropping nothing` for nothing at all
`glowing`, `silent`, `baby`	An outline that shows through walls; no sounds; a young one
`invisible`	It cannot be seen; what it holds and wears still can. Minecraft 1.16.3 or newer
`small`, `marker`, `with arms`, `without gravity`, `without base plate`	For an armor stand: half size; nothing can touch or select it; arms to hold things in; it floats where it was put; no stone plate under it. `without gravity` works on any creature

Write glowing, silent and baby before the items. After an item, glowing belongs to the item (dropping 1 stick glowing drops a shimmering stick).
What a creature holds and wears is its own and does not fall when it dies; say what it leaves behind with dropping.
What it drops stays with the creature, so it is still right after a restart.

What a creature leaves behind can also be changed when it dies, in on entity death::

on entity death:
    if event.entity is "zombie":
        add 1 emerald to drops
    if event.entity is "creeper":
        set drops to 3 gunpowder, 1 tnt

Statement	Effect
`set drops to <item>, <item>`	Replace what falls. `set drops to nothing`, or `clear drops`, for nothing
`add <item> to drops`	One more thing, on top of the rest
`make <who> shoot a <projectile>`	The same as `shoot <projectile> from <who>`, said the other way round. Add `at speed <n>`: `make player shoot an arrow at speed 3`
`shoot <projectile> from <who>`	Launch an arrow, snowball, egg, fireball, small fireball, ender pearl, trident or the like, the way they are looking. Add `with speed <n>`: 1 is a gentle throw, 3 a fully drawn bow

%event.drops% is the list of what is about to fall, in on entity death: as in on block break:.

Shooting, turning and the tab list:

command /blast:
    trigger:
        set player's pitch to 0
        set player's yaw to -90
        make player shoot a small fireball at speed 2
        make player shoot an arrow

command /ghost <player>:
    permission: "ghost.use"
    trigger:
        hide player from tab list of arg.1
        send "&7%arg.1% no longer sees you on the list."
        wait 30 seconds
        show player in tab list of arg.1

A kill that counts for somebody:

command /smite <player>:
    permission: "smite.use"
    trigger:
        if arg.1 is not a player:
            send "&c%arg.1% is not online."
            stop
        strike fake lightning at player's location
        kill arg.1 as player
        send "&eYou smote %arg.1%."

Turning somebody to face a place, a player or a direction:

command /lookat <player>:
    trigger:
        make player look at arg.1
        make arg.1 look at player's location

command /spawnview:
    trigger:
        make player look at 0, 80, 0
        wait 2 seconds
        make player look north