This spell costs less to cast for each creature card in your graveyard.
Flying
When this creature enters, any number of target opponents each discard a card. For each of those opponents who didn't discard a card with mana value 4 or greater, draw a card.

At the beginning of your end step, each player may put two +1/+1 counters on a creature they control. Goad each creature that had counters put on it this way. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

Flash
Whenever this creature or another Rogue you control enters, each opponent mills two cards.
As long as an opponent has eight or more cards in their graveyard, this creature gets +2/+1 and has deathtouch.

Create an X/X green Ooze creature token, where X is the greatest power among creatures you control.

If you control a Forest, rather than pay this spell's mana cost, you may have an opponent gain 3 life.
Target creature gets +4/+4 until end of turn.

Flying
When this creature enters, draw two cards.
Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

: Look at the top card of your library.
: Reveal the top card of your library. If it's a land card, this creature gets +2/+2 and gains trample until end of turn. Activate only once each turn.

Exile target creature. You draw cards equal to that creature's power. At the beginning of your next upkeep, return that card to the battlefield under its owner's control. If you do, discard cards equal to that creature's toughness.

Put target nonland historic permanent into its owner's library fourth from the top. (Artifacts, legendaries, and Sagas are historic.)

(: Add .)

: Put a +1/+2 counter on Experiment Five. ( is paid with one mana from any source that could produce two or more colors of mana.)

: Add .
: This land becomes a 4/3 creature with vigilance and all creature types until end of turn. It's still a land. ( can be paid with one mana from a snow source.)

Play with Fire deals 2 damage to any target. If a player is dealt damage this way, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever a player casts a spell, if no colored mana was spent to cast it, counter that spell.

(As this Saga enters and after your draw step, add a lore counter.)
I — Creatures you don't control get -2/-0 until your next turn.
II — If you have one or fewer cards in hand, draw four cards. Otherwise, scry 2, then draw two cards.
III — Exile this Saga, then return it to the battlefield transformed under your control.

Create a number of 3/3 green Tyranid Warrior creature tokens with trample equal to the number of opponents you have.

Return all artifact and enchantment cards from all graveyards to the battlefield under their owners' control. (Auras with nothing to enchant remain in graveyards.)

When this enchantment enters, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."
Whenever an outlaw you control dies, each opponent loses 1 life and you gain 1 life. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

Discard your hand. Then draw X cards, where X is the number of card types among cards in your graveyard.

Flash
Flying
When this creature enters, target opponent mills two cards. (They put the top two cards of their library into their graveyard.)