Adamaro, First to Desire's power and toughness are each equal to the number of cards in the hand of the opponent with the most cards in hand.

At the beginning of each player's end step, if an artifact entered the battlefield under your control this turn, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Flying, protection from enchantments

Whenever you attack, target attacking Vampire that isn't a Demon becomes a Demon in addition to its other types. It gains "When this creature dies, draw a card and create a tapped 4/3 white and black Vampire Demon creature token with flying."

Whenever Fangren Firstborn attacks, put a +1/+1 counter on each attacking creature.

Whenever a creature enters the battlefield under your control this turn, put a +1/+1 counter on it and it gains haste until end of turn.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Vigilance

At the beginning of your end step, you may return another creature you control to its owner's hand, then put a number of +1/+1 counters equal to that creature's power on First Responder.

Sliver creatures you control have exalted. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

When First-Sphere Gargantua enters the battlefield, you draw a card and you lose 1 life.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

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

I — Create a Cursed Role token attached to up to one target creature. (If you control another Role on it, put that one into the graveyard. Enchanted creature is 1/1.)

II — Scry 2.

III — When you next cast an instant or sorcery spell with mana value 3 or less this turn, copy that spell. You may choose new targets for the copy.

Haste

When Itzquinth, Firstborn of Gishath enters the battlefield, you may pay . When you do, target Dinosaur you control deals damage equal to its power to another target creature.

Kagemaro, First to Suffer's power and toughness are each equal to the number of cards in your hand.

, Sacrifice Kagemaro: All creatures get -X/-X until end of turn, where X is the number of cards in your hand.

Masumaro, First to Live's power and toughness are each equal to twice the number of cards in your hand.

If a nontoken creature would die, exile that card with a blood counter on it instead.

As long as an exiled creature card with a blood counter on it has flying, Rayami, First of the Fallen has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, and vigilance.

Tahngarth, First Mate can't be blocked by more than one creature.

Whenever an opponent attacks with one or more creatures, if Tahngarth is tapped, you may have that opponent gain control of Tahngarth until end of combat. If you do, choose a player or planeswalker that opponent is attacking. Tahngarth is attacking that player or planeswalker.

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

I — The First Eruption deals 1 damage to each creature without flying.

II — Add .

III — Sacrifice a Mountain. If you do, The First Eruption deals 3 damage to each creature.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Sliver spells you cast have cascade.

Haste

When Viashino Firstblade enters the battlefield, it gets +2/+2 until end of turn.