Oros, the Avenger [Commander 2011] Aetherborn Rogue Whenever Wall of Frost blocks

Whenever Wall of Frost blocks a creature

"You see a bird

Set: Gatecrash Type: Creature — Dinosaur Rarity: Uncommon Cost: {4}{R}{R} Menace (This creature can't be blocked except by two or more creatures

Set: Ixalan Type: Sorcery Rarity: Mythic Cost: {5}{B}{B} Exile up to five target creature cards from graveyards

Whenever Ezuri's Archers blocks a creature with flying

Oros, the Avenger [Commander 2011] Aetherborn Rogue Whenever Wall of Frost blocksSet: Commander 2011 Type: Legendary Creature Dragon Rarity: Rare Cost: {3}{R}{W}{B} Flying Whenever Oros, the Avenger deals combat damage to a player, you may pay {2}{W}. If you do, Oros deals 3 damage to each nonwhite creature.