Spark Double [War of the Spark Prerelease Promos] Aura A fragile cocoon of dreaming

A fragile cocoon of dreaming will

Set: Kaladesh Inventions Type: Artifact Creature — Construct Mythic Cost: {4}{R}{R} First strike When Combustible Gearhulk enters the battlefield

" —Argent Etchings

Set: Magic 2011 Promos Type: Creature — Ooze Rare Cost: {4}{G} When Mitotic Slime dies

Spark Double [War of the Spark Prerelease Promos] Aura A fragile cocoon of dreamingSet: 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.