The Thinker, Awoken

Hexproof
{u}{u}{u}{t}: Gain control of target artifact or creature until end of turn.
{u}{u}{t}: Target creature with flying loses flying or target creature without flying gains flying
{u}{u}{u}{x}: Target creature has base power x
until end of turn.
{r}{r}{r}{t}: Deal 4 damage to any target.
{w}{u}{u}{t}: This creature phases out.