The One Ring

Equip {1}
Equipped creature gets +2/+2 and can't be
blocked. If The One Ring is equipped at the start
of your upkeep, you lose 2 life. Before equipping
The One Ring, if it is already equipped
by one creature, that creature fights the new equipping creature.
Ash nazg durbatuluk, ash nazg gimbatul, ash nazg thrakatuluk, agh burzum-ishi krimpatul.