Prossh, Skyraider of Kher [Secret Lair Drop Series] Stonemaier they can only be used

they can only be used once per game

sacrifice Elder Spawn and it deals 6 damage to you

The Cackling Blood Skull symbol replaces the highest value on each die

So they keep hinting at it

Destroy the chosen creatures

Prossh, Skyraider of Kher [Secret Lair Drop Series] Stonemaier they can only be usedSet: Secret Lair Drop Series Type: Legendary Creature Dragon Rarity: Mythic Cost: {3}{B}{R}{G} When you cast this spell, create X 0 1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it. Flying Sacrifice another creature: Prossh, Skyraider of Kher gets +1 +0 until end of turn.