{G}, Discard a card: Crashing Centaur gains trample until end of turn. Threshold — As long as seven or more cards are in your graveyard, Crashing Centaur gets +2/+2 and has shroud.
{R}, {T}, Sacrifice Crater Elemental: It deals 4 damage to target creature. Formidable — {2}{R}: Crater Elemental has base power 8 until end of turn. Activate only if creatures you control have total power 8 or greater.
Crater's Claws deals X damage to any target. Ferocious — Crater's Claws deals X plus 2 damage instead if you control a creature with power 4 or greater.
At the beginning of your upkeep, you may mill a card. Delirium — {2}{G}, Sacrifice Crop Sigil: Return up to one target creature card and up to one target land card from your graveyard to your hand. Activate only if there are four or more card types among cards in your graveyard.
Strive — This spell costs {2}{B} more to cast for each target beyond the first. Any number of target creatures each get +1/+0 and gain lifelink until end of turn.
Choose one — • Destroy target creature with flying. • Destroy target artifact.
"Your veil's curse won't stop me, deathmage. I have taken down countless night hunters and this dark plane is not big enough for you to hide." —Garruk Wildspeaker, to Liliana Vess
Choose one — • Destroy all Dragon creatures. • Destroy all non-Dragon creatures.
Ugin's whispered summons led Sarkhan Vol to the moment that would echo down the centuries and seal Tarkir's fate: the primal battle between Ugin and Nicol Bolas.
Choose one — • Destroy all nonland permanent cards originally printed in the Mirrodin, Darksteel, Fifth Dawn, and Scars of Mirrodin expansions. • Destroy all nonland permanent cards originally printed in the Mirrodin Besieged, New Phyrexia, and Phyrexia: All Will Be One expansions.
Converge — Crystalline Crawler enters with a +1/+1 counter on it for each color of mana spent to cast it. Remove a +1/+1 counter from Crystalline Crawler: Add one mana of any color. {T}: Put a +1/+1 counter on Crystalline Crawler.
Whenever Cult of Skaro attacks, choose one at random — • Thay — Put a +1/+1 counter on each artifact creature you control. • Caan — Draw two cards. • Sec — Create a 3/3 black Dalek artifact creature token with menace. • Jast — Each opponent loses 4 life.
Target player sacrifices half the permanents they control, rounded down. Suspend 2—{2}{B}{B} At the beginning of each player's upkeep, if Curse of the Cabal is suspended, that player may sacrifice a permanent. If the player does, put two time counters on Curse of the Cabal.
Flying Will of the council — When Custodi Squire enters, starting with you, each player votes for an artifact, creature, or enchantment card in your graveyard. Return each card with the most votes or tied for most votes to your hand.
Parley — Whenever Cutthroat Negotiator attacks, each player reveals the top card of their library. For each nonland card revealed this way, you create a tapped Treasure token. Then each player draws a card.
"Either you two figure out how to share, or I'm going to share these swords with the insides of your skulls."