Energy Refractor [The Brothers' War] 198 making them crucial to the

making them crucial to the plane's defense

Set: The Brothers' War Commander Type: Legendary Artifact Creature — Construct Rarity: Rare Cost: {4} Trample

The Kargan tribes share legends of the victory their ancestors won over the Akoum Skyclave

Set: March of the Machine Type: Creature — Human Artificer Rarity: Uncommon Cost: {2}{R} Haste

For each of those cards

Energy Refractor [The Brothers' War] 198 making them crucial to theSet: The Brothers' War Type: Artifact Rarity: Common Cost: {2} When Energy Refractor enters the battlefield, draw a card. {2}: Add one mana of any color. Raw energy contains infinite possibility. Urza