Flying

Ascending Aven can block only creatures with flying.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Counter target spell unless its controller pays .

Corrupted — Counter that spell instead if its controller has three or more poison counters.

You gain 2 life, draw two cards, then discard two cards.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature

Enchanted creature gets +3/+3 and attacks each combat if able.

When enchanted creature dies, Impending Doom deals 3 damage to that creature's controller.

Prevent the next 4 damage that would be dealt to any target this turn.

Search target player's library for X cards, where X is the number of cards in your hand, and exile them. Then that player shuffles.

Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)

Converge — Exile target nonland permanent if its mana value is less than or equal to the number of colors of mana spent to cast this spell.

Destroy target artifact or enchantment if its mana value is less than or equal to the number of cards in your hand.

Draw a card.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Mill two cards, then you may return a creature card from your graveyard to your hand.

III — Return all land cards from your graveyard to the battlefield, then shuffle your graveyard into your library.