Majoras Mask

Doublestrike, Trample, Annihilater 2, equipped creature has +2/+2, Firststrike, and Hexproof.
Clock Town: At the beginning of your upkeep,
this equipment gets a Moon counter, then if it
has 3 or more counters, destroy all cards target opponent controls, remove all Moon counters.
Majora: The first time this equipment would be removed from battle, instead it becomes a
creature in addition to its other types.