Slowbro

Delayed pain - Whenever Slowbro would lose
life or be destroyed, that effect occurs at the beginning of your upkeep.
Slowbro's power is equal to the number of Sleep enchantment tokens you control.
Whenever Slowbro attacks, create a Sleep enchantment token and attach it to a creature you don't control.
Whenever Slowbro is tapped, put a stun counter on it.