Unbreakable Formation [March of the Machine Commander] Guilds of Ravnica Guild Kit then reveal cards from the

then reveal cards from the top of it until you reveal a nonland card

Set: Commander 2013 Type: Enchantment Rarity: Rare Cost: {1}{W}{W} When Act of Authority enters the battlefield

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

It's the pinnacle of utter destructiveness

blood rolls like a silk carpet

Unbreakable Formation [March of the Machine Commander] Guilds of Ravnica Guild Kit then reveal cards from theSet: 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.