Revive—{B}, Discard a card. ({B}, Discard a card, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)
Whenever an embattled creature you control dies, you may return Skhorvall Eternal from your graveyard to your hand. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)
Poisonous 3 (Whenever this creature deals combat damage to a player, that player gets three poison counters.) When Soulbreaker of Mautakesh enters, target poisoned player sacrifices a creature.
When Still-Smoke Skirmisher dies, each opponent loses 1 life and you gain 1 life. Then return Still-Smoke Skirmisher to the battlefield at the beginning of the next end step if it was sacrificed.
Raids into Allagras' Domains are usually led by more youthful vampires. They bring captives back to Subturgia and have to wait until their masters are fully sated before they can begin feasting on the remains.
Flying Tribute 2 (As this creature enters, an opponent of your choice may put two +1/+1 counters on it.) When Tireless Vulture enters, if tribute wasn't paid, each opponent loses 3 life. You gain life equal to the life lost this way.
Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.) {1}{W}, Sacrifice a creature or enchantment: Scry 1, then draw a card. Activate only if Trauma Surgeon has a +1/+1 counter on it.
When Treacherous Warden enters, search your library for a card, put into your graveyard, then shuffle. Whenever a creature enters from your graveyard, each opponent loses 2 life and you gain 2 life.
Sacrifice a creature: Two-Faced Aristocrat gains indestructible until end of turn. Attain {4}{B}({4}{B}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)
Whenever you cast a noncreature spell, torment each opponent. (They lose 3 life unless they discard a card or sacrifice a nonland permanent.) {3}{U/B}{U/B}: Draw a card for each opponent with ten or more cards in their graveyard. You lose that much life.
Haste When Backdrop Artisan dies, audition for red. (Create a 1/1 Construct Actor creature token, a Warrior Role giving 3/2 and trample, or a Wizard Role giving 2/2 and prowess. Roles replace older ones.)
Alpha (You may have this creature enter with a +1/+1 counter on it. If you do, it becomes alpha and can only attack alone.) Battering Swine attacks each combat if able.
Harmony — Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.” When Bouquet Singer enters, harmonize. (Trigger up to one harmony of one permanent you control.)
Flying, haste At the beginning of the end step, sacrifice Brightflame Phoenix. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)
Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.) Whenever Cauldish Arrogant becomes blocked by one or more creatures, reveal the top card of your library. Cauldish Arrogant deals damage equal to that card's mana value to each creature blocking it. Then put that card into your hand.
Trample, haste When Dashing Rager enters, attach all Equipment on the battlefield to it. (Control of the Equipment doesn't change.) At the beginning of the end step, sacrifice Dashing Rager.