Keeper of Secrets [Warhammer 40,000]

Keeper of Secrets [Warhammer 40,000]Set: Warhammer 40,000 Type: Creature Demon Rarity: Rare Cost: {5}{R} First strike, haste Symphony of Pain Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. To look upon one is to surrender every last shred of self will.

Sure enough

Set: XY: Generations Type: Fairy Rarity: Uncommon Retreat cost: Colorless

You lose life equal to its converted mana cost

−6: Exile target nonland permanent

all creatures that opponent controls attack if able

knowing it will prepare them for the years ahead

pit fighter

creatures you control get +X/+X and gain haste until end of turn

if Boneyard Marauder is in your banished zone

put it into its owner's graveyard and Nerf War deals ½ damage to that player

Set: Core Set 2021 Type: Legendary Planeswalker — Teferi Rarity: Mythic Cost: {2}{U}{U} You may activate loyalty abilities of Teferi

Set: Black & White: Dark Explorers Type: Darkness Rarity: Rare Retreat cost: Colorless