Copy Cat

1. [impulse] /scoreboard objectives add sneak minecraft.custom:minecraft.sneak_time

2. [impulse] /execute as @e[tag=copyCatVillager] at @s run attribute @s minecraft:scale base set .7

3. [chain] /execute as @e[tag=copyCatVillager] at @s run data merge entity @s {Silent:1}

4. [repeat] /execute as @p at @s rotated ~ 0 run tp @e[tag=copyCat] ^ ^ ^-1 ~ ~

5. [chain] /execute as @p at @s run data modify entity @e[tag=copyCat,limit=1] Rotation set from entity @s Rotation

6. [repeat] /execute as @e[tag=copyCatVillager] at @s run tp @e[tag=copyCat] ~ ~ ~ ~ ~

7. [chain] /execute as @p at @s run data modify entity @e[tag=copyCatVillager,limit=1] wander_target set from entity @s Pos

8. [chain] /execute as @e[tag=copyCatVillager] at @s run item replace entity @s weapon.offhand with minecraft:totem_of_undying

9. [chain] /execute as @e[tag=copyCatVillager] at @s run effect give @s minecraft:invisibility 2 1 true

10. [chain] /execute as @e[tag=copyCatVillager] at @s run item replace entity @s weapon.mainhand with air

11. [repeat] /execute as @p at @s if score @s sneak matches 1.. run data merge entity @e[tag=copyCat,limit=1] {pose:"crouching"}

12. [chain] /execute as @p at @s if score @s sneak matches 0 run data merge entity @e[tag=copyCat,limit=1] {pose:"standing"}

13. [chain] /execute as @p at @s run scoreboard players set @s sneak 0

14. [repeat] /execute as @e[tag=copyCat] at @s run item replace entity @s weapon.offhand with minecraft:totem_of_undying

15. [chain] /execute as @p at @s run item replace entity @e[tag=copyCat] weapon.mainhand from entity @s weapon.mainhand

16. [chain] /execute as @p at @s run item replace entity @e[tag=copyCat] armor.head from entity @s armor.head

17. [chain] /execute as @p at @s run item replace entity @e[tag=copyCat] armor.chest from entity @s armor.chest

18. [chain] /execute as @p at @s run item replace entity @e[tag=copyCat] armor.legs from entity @s armor.legs

19. [chain] /execute as @p at @s run item replace entity @e[tag=copyCat] armor.feet from entity @s armor.feet

20. [repeat] /execute as @p at @s if entity @e[tag=copyCat,nbt={HurtTime:10s}] run damage @s 1 minecraft:player_attack by @e[tag=copyCat,limit=1]