FlyingWhenever Crosis, the Purger deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and discards all cards of that color.
FlyingWhenever Darigaaz, the Igniter deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and Darigaaz deals damage to the player equal to the number of cards of that color revealed this way.
FlyingWhenever Dromar, the Banisher deals combat damage to a player, you may pay . If you do, choose a color, then return all creatures of that color to their owners' hands.
FlyingWhenever Rith, the Awakener deals combat damage to a player, you may pay . If you do, choose a color, then create a 1/1 green Saproling creature token for each permanent of that color.
Kicker (You may pay an additional as you cast this spell.): Regenerate Urborg Skeleton.If Urborg Skeleton was kicked, it enters with a +1/+1 counter on it.
Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.
FlyingWhenever Treva, the Renewer deals combat damage to a player, you may pay . If you do, choose a color, then you gain 1 life for each permanent of that color.
Spend only black and/or red mana on X.Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.