Amat, Blade of Vengeance

Flying First Strike
When Amat,Blade of Vengeance enters the battlefield,search your library and/or graveyard for a card named Amar,Revengeblade and equip it to Amat, Blade of Vengeance.
When a creature attacks you, put a +1/+1 counter on all creatures you control.
"The purest form of revenge"