Ring of Thrór

Equipped creature gains double strike. It gains a
Ring Counter at your end step. If it has five or more, exile it and create a 2/2 Ring Wraith token. Otherwise, remove a Ring counter from a dwarf creature and create a treasure token.

Equip legendary creature {1}. It can't be unequipped.

Bounty Artifact (Whoever defeats you, kills equipped creature or destroys Dol Guldur, controls it).