Xantcha, Sleeper Agent
{1}{B}{R}
Legendary Creature -- Phyrexian Minion
5/5
~this~ enters under the control of an opponent of your choice.
~this~ attacks each combat if able and can't attack its owner or planeswalkers its owner controls.
{3}: ~this~'s controller loses 2 life and you draw a card. Any player may activate this ability.