Thanos, Infinity

Menace, Trample, Annihilator 2
{r}:Deal 3 damage to any target
{u}: Gain control of target creature until end of turn
{w}: Thanos, Infinity gains hexproof until end of turn
{g}: Thanos, Infinity gets +3/+3 until end of turn
{b}: Destroy target creature or artifact
{w}{u}: Return target permanent to it's owners hand
{w}{u}{b}{r}{g}{p/c}{t}: Destroy half your opponents creatures rounded down