Zekrianar, The Unkillable

First Strike, Indestructible, Vigilance
Zekrianar, The Unkillable cannot be exiled. If it is, it instead goes to your graveyard. If Zekrianar, The Unkillable
is in your graveyard at the begining of your upkeep, return it to the battlefield. If it has Indestructible,
replace Indestructible with Deathtouch.
If it has Deathtouch, reaplace Deathtouch with Hexaproof.
If it has Hexaproof, replace Hexaproof with Indestructible.