Guildpact

({U/R} can be paid with either {U} or {R}.) When Petrahydrox becomes the target of a spell or ability, return Petrahydrox to its owner's hand.

{2}{W}: Target player gains 1 life. {2}{B}: Each player loses 1 life.

({W/B} can be paid with either {W} or {B}.) Flying Whenever Mourning Thrull deals damage, you gain that much life.

({U/R} can be paid with either {U} or {R}.) {2}{U}: Copy target instant spell you control with mana value 2 or less. You may choose new targets for...

({R/G} can be paid with either {R} or {G}.) {3}{R}, Sacrifice a land: Gruul Guildmage deals 2 damage to target player or planeswalker. {3}{G}: Targ...

({R/G} can be paid with either {R} or {G}.) Trample; haste; shroud (This creature can't be the target of spells or abilities.)

({U/R} can be paid with either {U} or {R}.) Flying Each instant and sorcery spell you cast has replicate. The replicate cost is equal to its mana c...

Whenever Yore-Tiller Nephilim attacks, return target creature card from your graveyard to the battlefield tapped and attacking.

Whenever you cast a spell, you may put two +1/+1 counters on Witch-Maw Nephilim. Whenever Witch-Maw Nephilim attacks, it gains trample until end of...

Flying Whenever you cast an instant or sorcery spell, Wee Dragonauts gets +2/+0 until end of turn.

Whenever you cast a blue spell, target creature gains flying until end of turn. Whenever you cast a red spell, Tibor and Lumia deals 1 damage to ea...

Sacrifice three white creatures: Exile target creature. Whenever another black creature you control dies, create a 1/1 white Spirit creature token ...

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters the battlefield with three +1/+1 counters on it.) {1}, Sacrifice Ska...

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.) Trample

At the beginning of your upkeep, Rumbling Slum deals 1 damage to each player.

Haunt (When this creature dies, exile it haunting target creature.) When Orzhov Pontiff enters the battlefield or the creature it haunts dies, cho...

Flying Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target. {T}: Draw a card.

{W}, Sacrifice a creature: Target creature can't attack this turn.

When Izzet Chronarch enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Whenever a player casts an instant or sorcery spell, if that spell targets only Ink-Treader Nephilim, copy the spell for each other creature that s...

Whenever Glint-Eye Nephilim deals combat damage to a player, draw that many cards. {1}, Discard a card: Glint-Eye Nephilim gets +1/+1 until end of ...

When Ghost Council of Orzhova enters the battlefield, target opponent loses 1 life and you gain 1 life. {1}, Sacrifice a creature: Exile Ghost Cou...

{T}: Gelectrode deals 1 damage to any target. Whenever you cast an instant or sorcery spell, you may untap Gelectrode.