Eventide

Casting Cost:

Whenever Ashling, the Extinguisher deals combat damage to a player, choose target creature that player controls. He or she sacrifices that creature.

Casting Cost:

Other red creatures you control get +1/+1.

Other white creatures you control get +1/+1.

Whenever you cast a red spell, Balefire Liege deals 3 damage to target player.

Whenever you cast a white spell, you gain 3 life.

: Add  to your mana pool.

, : Add , , or  to your mana pool.

Casting Cost:

Other black creatures you control get +1/+1.

Other green creatures you control get +1/+1.

At the beginning of your upkeep, you may put a 1/1 black and green Worm creature token onto the battlefield.

Casting Cost:

Other white creatures you control get +1/+1.

Other black creatures you control get +1/+1.

Whenever you cast a white spell, you may tap target creature.

Whenever you cast a black spell, you may destroy target creature if it's tapped.

Casting Cost:

Trample

Deity of Scars enters the battlefield with two -1/-1 counters on it.

, Remove a -1/-1 counter from Deity of Scars: Regenerate Deity of Scars. Flavor Text: "His skin cuts swords." —The Seer's Parables

Casting Cost:

Flying

At the beginning of your upkeep, you may gain control of target permanent until end of turn. If you do, untap it and it gains haste until end of turn.

Casting Cost:

When Endless Horizons enters the battlefield, search your library for any number of Plains cards and exile them. Then shuffle your library.

At the beginning of your upkeep, you may put a card you own exiled with Endless Horizons into your hand.

Casting Cost:

Whenever you cast a green spell, you may put a 2/2 green Wolf creature token onto the battlefield.

Whenever you cast a blue spell, you may put a 1/1 blue Bird creature token with flying onto the battlefield.

: Add  to your mana pool.

, : Add , , or  to your mana pool. 

Casting Cost:

, : For each counter on target permanent, put another of those counters on that permanent. (Untap is the untap symbol.)

Casting Cost:

Flying

, Sacrifice Glen Elendra Archmage: Counter target noncreature spell.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Casting Cost:

Put all creatures on the bottom of their owners' libraries.

Casting Cost:

Shroud (This enchantment can't be the target of spells or abilities.)

: Put X tower counters on Helix Pinnacle.

At the beginning of your upkeep, if there are 100 or more tower counters on Helix Pinnacle, you win the game.

Casting Cost:

Chroma — Each creature you control gets +1/+1 for each white mana symbol in its mana cost.

Casting Cost:

Other blue creatures you control get +1/+1.

Other red creatures you control get +1/+1.

: You may put a blue or red creature card from your hand onto the battlefield.

Casting Cost:

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.

Casting Cost: 

Overbeing of Myth's power and toughness are each equal to the number of cards in your hand.

At the beginning of your draw step, draw an additional card.