Blast-Furnace Hellkite (Retro) [The Brothers' War Commander] Ravnica Allegiance Elements that cannot be used

Elements that cannot be used can be converted into energy cubes or additional cards in hand or they can be added to your tableau to give you greater options as the game evolves

you may return target Angel or Human creature card from your graveyard to the battlefield

Then if there are three or more soul counters on it

Set: Collectors' Edition Type: Enchantment — Aura Rarity: Common Cost: {B}{B} Enchant creature (Target a creature as you cast this

Blast-Furnace Hellkite (Retro) [The Brothers' War Commander] Ravnica Allegiance Elements that cannot be usedSet: The Brothers' War Commander Type: Creature Dragon Rarity: Rare Cost: {7}{R}{R} Artifact offering (You may cast this spell as though it had flash by sacrificing an artifact and paying the difference in mana costs between this and the sacrificed artifact. Mana cost includes color.) Flying, double strike Creatures attacking your opponents have double strike.