Cavern of Souls (Promo Pack) [The Lost Caverns of Ixalan Promos] World Championship Decks 1997 {4}{W}: Cave of the Frost

{4}{W}: Cave of the Frost Dragon becomes a 3/4 white Dragon creature with flying until end of turn

Overload 2WW (You may cast this spell for it's overload cost

{T}: Add {W}

Set: Secret Lair Drop Promos Type: Creature — Sliver Rarity: Rare Cost: {1}{B} Each Sliver creature card in your graveyard has unearth {2}

Mark of the Chaos Ascendant — During your turn

Cavern of Souls (Promo Pack) [The Lost Caverns of Ixalan Promos] World Championship Decks 1997 {4}{W}: Cave of the FrostSet: The Lost Caverns of Ixalan Promos 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.