Spark Double [War of the Spark Prerelease Promos] XY135 but its original ATK becomes

but its original ATK becomes 0

Set: HeartGold & SoulSilver: Triumphant Type: Psychic Rarity: Uncommon Retreat cost: 0

Land's Edge deals 2 damage to target player or planeswalker

At the beginning of the upkeep of enchanted land's controller

or 1 card that specifically lists "Dark Fusion" in its text

Spark Double [War of the Spark Prerelease Promos] XY135 but its original ATK becomesSet: War of the Spark Prerelease Promos 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.