Kroxa, Titan of Death's Hunger exo and it has "{T}: Add

and it has "{T}: Add {G}

−2: Choose target creature an opponent controls

{R}: Chartooth Cougar gets +1/+0 until end of turn

Remove X storage counters from Dreadship Reef: Add X mana in any combination of {U} and/or {B}

All creatures get -2/-2 until end of turn

Kroxa, Titan of Death's Hunger exo and it has "{T}: AddWhen Kroxa enters the battlefield, sacrifice it unless it escaped. Whenever Kroxa enters the battlefield or attacks, each opponent discards a card, then each opponent who didn't discard a nonland card this way loses 3 life. Escape{B}{B}{R}{R}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)