More Commands (for java)

I am someone who loves messing around with commands and these are some ideas I have for some new ones.

/look (makes whatever entity forced to look either at another entity or in a certain direction)

/follow (makes an entity follow another entity)

/avoid (makes an entity avoid another entity if it gets to close)

/attack (makes an entity attack the target entity (will only work with aggressive or neutral mobs))

/sound (can change how loud or how quiet the sounds that the target entity makes)

/disguise (makes an entity look like a different mob, but acts the same)

/ai (makes an entity act like a different mob, but looks the same)