Hostage Taker [Ixalan] Elspeth 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

Put that card onto the battlefield and put all other cards revealed this way into your graveyard

Golem creatures you control have flying

Mountains leveled

Hostage Taker [Ixalan] Elspeth Maro-Sorcerer's power and toughness areSet: Ixalan Type: Creature Human Pirate Rarity: Rare Cost: {2}{U}{B} When Hostage Taker enters the battlefield, exile another target creature or artifact until Hostage Taker leaves the battlefield. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.