Morophon, the Boundless (Borderless Textured Foil Frame Break) [Commander Masters] Commander 2020 Keeper of Secrets deals damage

Keeper of Secrets deals damage equal to that spell's mana value to target opponent

It enters the battlefield tapped and attacking

and 11–12 Common cards

Traditional Foil Borderless Mythic Rare card in <1% of boosters

Whenever Grimgrin attacks

Morophon, the Boundless (Borderless Textured Foil Frame Break) [Commander Masters] Commander 2020 Keeper of Secrets deals damageSet: Commander Masters Type: Legendary Creature Shapeshifter Rarity: Mythic Cost: {7} Changeling (This card is every creature type.) As Morophon, the Boundless enters the battlefield, choose a creature type. Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay. Other creatures you control of the chosen type get +1 +1. Changeling (This card is every creature type.) As