When Rotting Rats enters, each player discards a card.Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
Knight of the Reliquary gets +1/+1 for each land card in your graveyard., Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle.
At the beginning of your upkeep, if you control a black permanent, you may put a +1/+1 counter on Bloodhall Ooze.At the beginning of your upkeep, if you control a green permanent, you may put a +1/+1 counter on Bloodhall Ooze.
Trample, hasteAt the beginning of the end step, sacrifice Hellspark Elemental.Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.): Destroy target creature that dealt damage to you this turn.
FlyingYou may cast Worldheart Phoenix from your graveyard by paying rather than paying its mana cost. If you do, it enters with two +1/+1 counters on it.