Hour of Devastation [Hour of Devastation] Elemental Druid where X is the greatest

where X is the greatest power among creatures you control

Set: Doctor Who Type: Legendary Artifact — Clue Rarity: Rare Cost: {3}{U} Five Hundred Year Diary enters the battlefield tapped

Set: Murders at Karlov Manor Commander Type: Legendary Creature — Elemental Dog Rarity: Rare Cost: {3}{R} Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it

If you don't cast it

It's not the most subtle incantation

Hour of Devastation [Hour of Devastation] Elemental Druid where X is the greatestSet: Hour of Devastation Type: Sorcery Rarity: Rare Cost: {3}{R}{R} All creatures lose indestructible until end of turn. Hour of Devastation deals 5 damage to each creature and each non Bolas planeswalker. "Everything here exists or perishes at my whim. Including you, Gatewatch." Nicol Bolas