black star rare pokemon cards Moltres ex (031) [Nintendo: Promos] Captured in a crystal Every Black Star Promo Explained

Unfortunately you cant reanimate the sacrificed creature thanks to the ordering of effects, and sacrificing a creature isnt part of the actual cost of this card

If the creature is removed, you lose card advantage

Legendary Creature - Eldrazi Color tag templates(None) Kozilek's Unsealing Devoid (This card has no color.) Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add ." Whenever you cast a creature spell with mana value 7 or greater, draw three cards

The article highlights several valuable cards from the set, including Last March of the Ents, Orcish Bowmasters, and The One Ring