Kinos, Blitz Dignitary

Assist (Another player can pay up to {5} of this
spell's cost.)
When Kinos, Blitz Dignitary enters the battlefield, each player may return to the battlefield a creature from their graveyard with converted mana cost equal to the mana they
spent on Kinos, Blitz Dignitary. Each opponent
loses life equal to the mana they spent. Those
creatures gain haste until end of turn.