Tess, Leader of the Uprising

Whenever Tess, Leader of the Uprising enters
the battlefield, gain control of target creature an
opponent controls until end of turn. Untap that
creature.
Creatures you control but don't own are Rebels
in addition to their other types and have haste.
Whenever a Rebel you control attacks, it gets
+2/+0 and gains first strike until end of turn.