Mendis, Malevolent Usurper

{b/g}{b/g}{b/g}{t}: Put the top 5 cards of your library into
your graveyard.
{u/b}{u/b}{u/b}{t}: Create a token that is a copy of target creature.
{g/u}{g/u}{g/u}{t}: Creatures target player controls
become 1/1 creatures until end of turn.
{x}{x}{2}{b}{g}{u}{t}: You may cast X cards from any
graveyard this turn without paying their mana cost.