Findus, Blakebound Slave

When Findus, Blakebound Slave enters the battlefield create X 1/1 Mistake tokens with '{t}: Sacrifice this card to destroy target artifact or enchantment an opponent controls'
Whenever an opponent casts an instant or
sorcery spell with mana value 4 or greater create
a Mistake token.
Sacrifice a Mistake token to put 2 +1/+1
counters on Findus, Blakebound Slave
Findus has Trample as long as its Power is 10 or
more.