Spark Double [War of the Spark] SM38 Whenever Master of Cruelties attacks

Whenever Master of Cruelties attacks a player and isn't blocked

x1][When Attacking][Once Per Turn] You may return 1 of your Characters with a cost of 2 or more to the owner's hand : Set up to 1 of your Characters with 7000 power or less as active

If you control a Demon or Devil

Set: The Brothers' War Prerelease Promos Type: Legendary Creature — Elf Druid Scout Rarity: Rare Cost: {2}{G} {T}: Add two mana in any combination of colors

Spark Double [War of the Spark] SM38 Whenever Master of Cruelties attacksSet: War of the Spark Type: Creature Illusion Rarity: Rare Cost: {3}{U} You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1 +1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary if that permanent is legendary.