Sarkhan's Unsealing [Core Set 2019] Alpha Edition Splice onto Arcane {2}{R}{R} (As

Splice onto Arcane {2}{R}{R} (As you cast an Arcane spell

Repeat this process until no one puts a card onto the battlefield

you may put Nether Shadow onto the battlefield

its controller creates a 1/1 green Snake creature token

Set: Magic 2013 Type: Creature — Merfolk Rarity: Rare Cost: {U}{U} Other Merfolk creatures you control get +1/+1 and have islandwalk

Sarkhan's Unsealing [Core Set 2019] Alpha Edition Splice onto Arcane {2}{R}{R} (AsSet: Core Set 2019 Type: Enchantment Rarity: Rare Cost: {3}{R} Whenever you cast a creature spell with power 4, 5, or 6, Sarkhan's Unsealing deals 4 damage to any target. Whenever you cast a creature spell with power 7 or greater, Sarkhan's Unsealing deals 4 damage to each opponent and each creature and planeswalker they control.