Mary, Ally to All

Eminence — Whenever a gate enters the battlefield under your control untap it.
{r/g}: All creatures gain haste.
{1}{w/u}: Tap target creature.
{2}{g/w}: Target player searches their library for a
gate or basic land and puts it into play.
{3}{u/b}: Target player draws two cards and loses
1 life.
{4}{b/r}: Return target creature to the battlefield
under your control.