Spark Double (Promo Pack) [War of the Spark Promos]Set: War of the Spark 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.

If a player does

Set: Sun & Moon: Crimson Invasion Type: Lightning Rarity: Secret Rare Retreat cost: Colorless

Set: Nintendo: Black Star Promos Type: Fighting Rarity: Promo Retreat cost: Colorless

Set: Arena League 2001 Type: Basic Land — Mountain Rarity: Rare ({T}: Add {R}

Set: The Dark Type: Creature — Human Cleric Rarity: Rare Cost: {1}{W}{W} You may choose not to untap Preacher during your untap step

that player plays with that card revealed in their hand and can't play it

You may reveal an Aura

Set: XY: Steam Siege Type: Supporter Rarity: Promo

Wood Elemental's power and toughness are each equal to the number of Forests sacrificed as it entered the battlefield

Canopy Vista enters the battlefield tapped unless you control two or more basic lands

their controllers sacrifice them

Set: The Dark Type: Artifact Rarity: Uncommon Cost: {2} {T}: Add one mana of any color that a land an opponent controls could produce