Vigilance
When this creature enters, you take the initiative.

Prevent the next 4 damage that would be dealt this turn to any number of targets, divided as you choose.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

The Ring tempts you. Search your library for a card that shares a color with a legendary creature you control, reveal it, put it into your hand, then shuffle.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Search your library for a Doctor card, reveal it, put it into your hand, then shuffle.
II — Create a Food token and a 1/1 white Human creature token with "Doctor spells you cast cost less to cast."
III — Create a token that's a copy of target creature, except it's a legendary Alien named Prisoner Zero.

Menace
Whenever Sauron attacks, exile target creature card from your graveyard. Create a tapped and attacking token that's a copy of that card, except it's a 3/3 black Wraith with menace. At the beginning of the next end step, exile that token unless Sauron is your Ring-bearer.

: Target creature gets -X/-0 until end of turn, where X is the number of Merfolk and/or Faeries you control.

Whenever this creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever a face-down creature you control enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Whenever a permanent you control is turned face up, if it's a creature, it gets +2/+2 until end of turn.

Flying
When this creature enters, create a 4/4 red Dragon creature token with flying.

Flying
Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard.
At the beginning of your upkeep, tap this creature unless you sacrifice another creature.

Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

This creature enters with a -1/-1 counter on it.
, Remove a -1/-1 counter from this creature: Destroy target artifact or enchantment.

Draw three cards. Target player mills three cards.

Return target creature to its owner's hand.
Draw a card.

(: Add or .)
This land enters tapped.
Cycling (, Discard this card: Draw a card.)

(: Add .)

Flash
Pheromone Trail — When this creature enters, if a creature entered the battlefield under an opponent's control this turn, create a 3/3 green Tyranid Warrior creature token with trample.

Flash
This spell costs less to cast for each creature attacking you.
When this creature enters, you get for each creature attacking you.
At the beginning of combat on your turn, you may pay . If you do, put a +1/+1 counter on each creature you control.

Choose odd or even. Exile each creature with mana value of the chosen quality. (Zero is even.)

Haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, it deals 3 damage to target player or planeswalker.