The Super Hero Civil War

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Gain control of up to two target creatures with total mana value 6 or less for as long as this Saga remains on the battlefield.
II — Creatures you control get +1/+1 and gain vigilance until end of turn.
III — Target creature you control fights up to one other target creature.