Raging River [Collectors' Edition] P-20 Whenever another nontoken Dragon enters

Whenever another nontoken Dragon enters the battlefield under your control

"Avacyn emerged from the broken Helvault

Set: Urza's Saga Type: Creature — Drake Rarity: Rare Cost: {1}{U} Flying

Set: XY: Furious Fists Type: Fighting Rarity: Secret Rare Retreat cost: Colorless

Raging River [Collectors' Edition] P-20 Whenever another nontoken Dragon entersSet: Collectors' 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.