Chromaloch

Devoid
{w}{u}: Put target creature that dealt damage to a
player this turn on top of its owner's library.
{u}{b}: Fateseal 1.
{b}{r}: Deal 1 damage to target player.
{r}{g}: Deal 1 damage to target creature. It can't
block this turn.
{g}{w}: Target attacking or blocking creature
loses all abilities until end of turn.