Cavern of Souls (0410d) (Borderless) [The Lost Caverns of Ixalan]

Cavern of Souls (0410d) (Borderless) [The Lost Caverns of Ixalan]Set: The Lost Caverns of Ixalan Type: Land Rarity: Mythic As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

and when the reapers cut the grains under the Harvest Moon

Set: Commander Masters Type: Creature — Demon Rarity: Uncommon Cost: {4}{B}{B} As an additional cost to cast this spell

Set: Secret Lair Drop Series Type: Artifact Rarity: Rare Cost: {5} {T}: Add three mana of any one color

Set: Fourth Edition Type: Creature — Human Assassin Rarity: Rare Cost: {1}{B}{B} {T}: Destroy target tapped creature

Set: Invasion Type: Artifact Rarity: Rare Cost: {3} Sacrifice a creature: Add one mana of any color

If the exiled card is a God card

Set: Guilds of Ravnica Prerelease Promos Type: Sorcery Rarity: Rare Cost: {2}{B}{B} Destroy all creatures with mana value 3 or less

When you lose control of Gustha's Scepter

Battalion — Whenever Garbage Elemental and at least two other creatures attack

"It serves as evidence of the ancient power of the deep

put a +1/+1 counter on each of those Vampires

Izzet mages often acquire their magic reagents from dubious sources