You control target player during that player's next turn
Although Limit Break is about even with Revival Trance out of the box, it lacks some of the same potential for improvement with upgrades
Skip the $20+ cards (Thrumming Stone, Coat of Arms, Cover of Darkness) and the deck still hums: Commander: Karumonix, the Rat King (~$1) Engines: Pack Rat (~$3.30), Piper of the Swarm (~$3), Ogre Slumlord (~$0.45), a couple of Relentless Rats / Rat Colony (~$56 each cap the copies to stay on budget) Payoffs/utility: Crypt Rats (~$0.50), Nezumi Bone-Reader (~$0.40), Bontu the Glorified (~$3) as a sac outlet, Throne of the God-Pharaoh only if budget allows The rest: cheap black removal, Swamps, and a Sol Ring The whole list comes in well under $50, and it scales up gracefully add Marrow-Gnawer and Thrumming Stone later and the same shell jumps several power levels
This thing gets considerably more powerful the more colors you bring to the party
When The One Ring enters, if you cast it, you gain protection from everything until your next turn
Unlike most other equipment you are not really at risk of getting blown out with removal after having expended mana to equip something up