Mimeoplasm, Revered One

Mana cost: {X}{B}{G}{U}

Legendary Creature — Ooze

As Mimeoplasm enters, exile up to X creature cards from your graveyard. It enters with three +1/+1 counters on it for each creature card exiled this way. {2}: Mimeoplasm becomes a copy of target creature card exiled with it, except it's 0/0 and has this ability.