John Wick 'Retired' Criminal

Double strike, Ward: Sacrifice a creature, Flash
When John Wick enters the battlefield destroy
target creature.
Attach any equipment cards you control to John
Wick for free.
Whenever John Wick attacks the attacked player
loses 3 life.
When John Wick dies it perpetually gets +1/+1,
then put it on top of your library.
"I'm retired" - John Wick