For the Ancestors [Commander Masters] Hellion Horror Set: Dominaria United Tokens Type:

Set: Dominaria United Tokens Type: Emblem Rarity: Common Whenever you cast a creature or planeswalker spell

Set: Rivals of Ixalan Prerelease Promos Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {10}{G}{G} This spell costs {X} less to cast

Expansion to

Whenever the first noncreature spell of a turn is cast

Whenever the final chapter of a Saga you control triggers

For the Ancestors [Commander Masters] Hellion Horror Set: Dominaria United Tokens Type:Set: Commander Masters Type: instant Rarity: Rare Cost: {2}{G} Choose a creature type. Look at the top six cards of your library. You may reveal any number of cards of the chosen type from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order. Flashback 3G (You may cast this card from your graveyard for its flashback cost. Then exile it.)