+Demon, +Spirit, +Demon, +Spirit (13)
Flash
This spell costs less to cast for each creature that died this turn.
When Death-Rattle Oni enters, destroy all other creatures that were dealt damage this turn.
Trample
At the beginning of your upkeep, discard a card if you don't control an Ogre.
Kagemaro, First to Suffer's power and toughness are each equal to the number of cards in your hand.
, Sacrifice Kagemaro: All creatures get -X/-X until end of turn, where X is the number of cards in your hand.
At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay .
Pay 1 life: Target creature gets -1/-1 until end of turn.
Whenever you cast a Spirit or Arcane spell, target opponent exiles a card from their hand.
Haste
At the beginning of your upkeep, return a red creature you control to its owner's hand.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
At the beginning of your upkeep, sacrifice a creature if you don't control an Ogre.
Black creatures can't block.
At the beginning of your upkeep, you lose 2 life if you don't control an Ogre.
At the beginning of each player's upkeep, that player loses 2 life and draws two cards.
As Shimatsu the Bloodcloaked enters, sacrifice any number of permanents. Shimatsu enters with that many +1/+1 counters on it.
Flying, trample, haste, protection from black
Spirit of the Night has first strike as long as it's attacking.
When Yukora, the Prisoner leaves the battlefield, sacrifice all non-Ogre creatures you control.
Gatherer works better in the Companion app!
, Sacrifice Kagemaro: All creatures get -X/-X until end of turn, where X is the number of cards in your hand.