Chain of Vapor [Onslaught] Apocalypse 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

Set: Modern Masters 2015 Type: Legendary Creature — Praetor Mythic Cost: {5}{W}{W} Vigilance Other creatures you control get +2/+2

Set: Planar Chaos Type: Sorcery Rare Cost: {2}{B}{B} Destroy all creatures

Summoned from the dreamrealms

Gravestorm (When you cast this spell

Chain of Vapor [Onslaught] Apocalypse Maro-Sorcerer's power and toughness areSet: Onslaught Type: Instant Uncommon Cost: {U} Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land. If the player does, they may copy this spell and may choose a new target for that copy.