Toek, Devastation Incarnate

Whenever Toek or another creature enters the battlefield under your control, each opponent
loses life equal to it's converted mana cost.
Whenever Toek leaves the battlefield, it's
controller loses half their life total rounded up.
{2}{u}{b}{r}{g}{t}: Target opponent gains control of
Toek until the next end step: it gains haste, deathtouch, must attack and be blocked if able.
"Best wish on Toek" - Mul-Daya proverb for a
death-wish.