Chromium [Legends] Bolas Set: Prophecy Type: Creature —

Set: Prophecy Type: Creature — Avatar Rarity: Rare Cost: {6}{B}{B} If there are ten or more creature cards total in all graveyards

{1}: Regenerate Living Wall

Set: Dragon's Maze Promos Type: Instant Rarity: Rare Cost: {W}{U}{U} Counter target spell

Though many think of Wolves as solitary predators

you'll understand why

Chromium [Legends] Bolas Set: Prophecy Type: Creature —Set: Legends Type: Legendary Creature Elder Dragon Rarity: Rare Cost: {2}{W}{W}{U}{U}{B}{B} Flying Rampage 2 (Whenever this creature becomes blocked, it gets +2 +2 until end of turn for each creature blocking it beyond the first.) At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.