Krark-Clan Ironworks [Fifth Dawn] Commander's Arsenal "The echo of silence is

"The echo of silence is music to my ears

Set: Rivals of Ixalan Prerelease Promos Type: Creature — Dinosaur Rarity: Mythic Cost: {6}{G}{G} Enrage — Whenever Polyraptor is dealt damage

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

if Howling Mine is untapped

Set: Unlimited Edition Type: Creature — Bird Rarity: Rare Cost: {3}{R} Flying

Krark-Clan Ironworks [Fifth Dawn] Commander's Arsenal "The echo of silence isSet: Fifth Dawn Type: Artifact Rarity: Uncommon Cost: {4} Sacrifice an artifact: Add {C}{C}. All the junk, refuse, and offal of the Krark Clan is diligently collected, melted down, and made into more junk, refuse, and offal.