Gratzy, Slayer of Angels

When Gratzy, Slayer of Angels enters the battlefield, you may search your library and or graveyard for a card named "Gratzy's Spear" and a card named "Nazahn, Revered Bladesmith" and put them into the battlefield.
First strike, Hexproof, Reach
If Gratzy, Slayer of Angels has ever Killed an angel in this game, it gains invincible.
Creatures you control gain "{r/g}: attach target equipment to this creature."