Raging River [Unlimited Edition] Shards of Alara then Combustible Gearhulk deals damage

then Combustible Gearhulk deals damage to that player equal to the total mana value of those cards

"First through the Riftstone was Genesis—and the world was lifeless no more

Set: Shadowmoor Type: Legendary Creature — Merfolk Rogue Rarity: Rare Cost: {U/B}{U/B} At the beginning of each end step

Set: Ugin's Fate Type: Creature — Human Wizard Rarity: Rare Cost: {2}{B} Morph {B} (You may cast this card face down as a 2/2 creature for {3}

Set: San Diego Comic-Con 2013 Type: Legendary Planeswalker — Liliana Rarity: Mythic Cost: {2}{B}{B} +1: Search your library for a Swamp card

Raging River [Unlimited Edition] Shards of Alara then Combustible Gearhulk deals damageSet: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.