Cavern of Souls [Ultimate Box Topper]Set: Ultimate Box Topper 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.

players can't untap more than one land during their untap steps

each creature that player controls attacks if able

Set: Planechase Planes Type: Plane — Kamigawa Rarity: Common Whenever a player casts a spell

Set: Limited Edition Alpha Type: Instant Rarity: Uncommon Cost: {R} Destroy target Wall

Spend this mana only to cast Dragon spells

Set: Betrayers of Kamigawa Type: Legendary Artifact — Equipment Rarity: Rare Cost: {2} Whenever equipped creature deals combat damage

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {B}

As long as every card in your card pool started the game in your library or in the command zone

create a 3/3 colorless Wurm artifact creature token with deathtouch and a 3/3 colorless Wurm artifact creature token with lifelink

Set: Limited Edition Beta Type: Enchantment — Aura Rarity: Rare Cost: {G} Enchant artifact

Set: Dominaria Type: Sorcery Rarity: Common Cost: {3}{B} Destroy target creature

Set: Limited Edition Beta Type: Instant Rarity: Uncommon Cost: {W} Exile target creature