The Skullspore Nexus (Promo Pack) [The Lost Caverns of Ixalan Promos] Grass[x2] The raging behir reared back

The raging behir reared back

you may open a sealed Magic booster pack and put the cards on the bottom of your booster pile in a random order

As long as this card remains face-up on the field

Set: XY: Black Star Promos Type: Grass Rarity: Promo Retreat cost: 0

and you have another "Memory Snow" character

The Skullspore Nexus (Promo Pack) [The Lost Caverns of Ixalan Promos] Grass[x2] The raging behir reared backSet: The Lost Caverns of Ixalan Promos Type: Legendary Artifact Rarity: Mythic Cost: {6}{G}{G} This spell costs X less to cast, where X is the greatest power among creatures you control. Whenever one or more nontoken creatures you control die, create a green Fungus Dinosaur creature token with base power and toughness each equal to the total power of those creatures. 2, T: Double target creature's power until end of turn.