Unbreakable Formation [March of the Machine Commander] Guilds of Ravnica Guild Kit annihilating and consuming their foes

annihilating and consuming their foes in a frenzied holocaust

It's the pinnacle of utter destructiveness

Set: HasCon 2017 Type: Artifact — Equipment Rarity: Mythic Cost: {3} Equipped creature gets +2/+2 and has protection from Rogues and from Clerics

Set: Ravnica: City of Guilds Type: Artifact Creature — Golem Rarity: Uncommon Cost: {5} Izzet artificers have learned to steer their beautiful constructs clear of Boros warhammers—and the opera house

"Strength in numbers

Unbreakable Formation [March of the Machine Commander] Guilds of Ravnica Guild Kit annihilating and consuming their foesSet: March of the Machine Commander Type: Instant Rarity: Rare Cost: {2}{W} Creatures you control gain indestructible until end of turn. Addendum If you cast this spell during your main phase, put a +1 +1 counter on each of those creatures and they gain vigilance until end of turn.