Jalein, Cunning Courtesan

+1: Up to one target creature can't attack you or planeswalkers you control until the beginning of your next upkeep.
-3: Gain control of target creature until end of turn. It gets +2/+0 and gains haste until end of turn.
-7: You get an emblem with "Whenever a creature enters the battlefield under an opponent's control, gain control of it."