Cavern of Souls [Modern Masters 2017] ARC173-R Maro-Sorcerer's power and toughness are

Maro-Sorcerer's power and toughness are each equal to the total number of cards in all players' hands

Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card

Set: Judge Gift Cards 2006 Type: Creature — Human Wizard Rarity: Rare Cost: {R} {R}

Ignore this effect for each creature the player didn't control continuously since the beginning of the turn

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

Cavern of Souls [Modern Masters 2017] ARC173-R Maro-Sorcerer's power and toughness areSet: Modern Masters 2017 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.