Test Subject

When this scheme is set in motion, you may exile a creature card on the battlefield or in a graveyard. If that creature had first strike creatures you control have first strike. The same
is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, and vigilance.
Each end step target two opponents. They may choose to have their permanents not untap during their next untap step. If they do, abandon this scheme.