Azor I, the Creator of Law

{1}{w/u}{w/u}: Target creature gets +1/+1 and gains vigilance until end of turn. If it would be blocked this turn, at end of combat, detain each creature that blocked it.
{7}{w/u}{w/u}{w/u}{w/u}, {t}: Detain all permanents you don't control, then exile them at the beginning of the next end step.