Cavern of Souls (0410b) (Borderless) [The Lost Caverns of Ixalan] Theros Beyond Death Promos and that player can't activate

and that player can't activate abilities that aren't mana abilities

000 Type: Creature — Human Tyranid Artificer Rarity: Rare Cost: {4}{G} Proclamator Hailer — Each creature you control gets +1/+1 for each +1/+1 counter on it

Set: Invasion Type: Enchantment Rarity: Rare Cost: {1}{G}{W} No more than one creature can attack each combat

As long as your devotion to white and blue is less than seven

1 Art Card (foil-stamped Signature Art Card replaces the Art Card in 10% of Boosters)

Cavern of Souls (0410b) (Borderless) [The Lost Caverns of Ixalan] Theros Beyond Death Promos and that player can't activateSet: 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.