Flash (You may cast this spell any time you could cast an instant.)

Enchant creature or Vehicle

When Aether Meltdown enters the battlefield, you get (two energy counters).

Enchanted permanent gets -4/-0.

Defender

: Amaranthine Wall gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

If an opponent searched their library this turn, you may pay rather than pay this spell's mana cost.

Target opponent puts the top thirteen cards of their library into their graveyard.

When you cast this spell, you may return target creature card from your graveyard to the battlefield.

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)

: Add .

, , Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.

Equipped creature gets +3/+0.

As long as equipped creature is a Human, it has lifelink.

Equip

Haste

Menace (This creature can't be blocked except by two or more creatures.)

When Chittering Host enters the battlefield, other creatures you control get +1/+0 and gain menace until end of turn.

: Target player puts the top card of their library into their graveyard.

, , Sacrifice Codex Shredder: Return target card from your graveyard to your hand.

Creeping Tar Pit enters the battlefield tapped.

: Add or .

: Creeping Tar Pit becomes a 3/2 blue and black Elemental creature until end of turn and can't be blocked this turn. It's still a land.

Converge — Crystalline Crawler enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.

Remove a +1/+1 counter from Crystalline Crawler: Add one mana of any color.

: Put a +1/+1 counter on Crystalline Crawler.

: Death-Hood Cobra gains reach until end of turn.

: Death-Hood Cobra gains deathtouch until end of turn.

Equipped creature gets +4/+2.

Equip—Sacrifice a creature.

Flash

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's converted mana cost.)

When you cast this spell, tap up to four target permanents.

, Sacrifice Emrakul's Evangel and any number of other non-Eldrazi creatures: Create a 3/2 colorless Eldrazi Horror creature token for each creature sacrificed this way.

Endless One enters the battlefield with X +1/+1 counters on it.

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

I — Destroy all lands.

II, III — Each player returns two land cards from their graveyard to the battlefield.

Destroy target artifact or enchantment with converted mana cost 4 or less.

Create two 2/2 black Zombie creature tokens.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever you crank Gnomeball Machine, create two 1/1 colorless Gnome artifact creature tokens.

First strike

When Grim Initiate dies, amass 1. (Put a +1/+1 counter on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)

Kicker (You may pay an additional as you cast this spell.)

Flying

When Heartstabber Mosquito enters the battlefield, if it was kicked, destroy target creature.

Landfall — Whenever a land enters the battlefield under your control, Hedron Scrabbler gets +1/+1 until end of turn.

Constellation — Whenever Humbler of Mortals or another enchantment enters the battlefield under your control, creatures you control gain trample until end of turn.

Vigilance

When Intrusive Packbeast enters the battlefield, tap up to two target creatures your opponents control.

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's converted mana cost.)

When you cast this spell, create two 1/1 green Insect creature tokens.

Devoid (This card has no color.)

: Kozilek's Shrieker gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. represents colorless mana.)

If you would draw a card while your library has no cards in it, you win the game instead.

As Living Lore enters the battlefield, exile an instant or sorcery card from your graveyard.

Living Lore's power and toughness are each equal to the exiled card's converted mana cost.

Whenever Living Lore deals combat damage, you may sacrifice it. If you do, you may cast the exiled card without paying its mana cost.

Assist (Another player can pay up to of this spell's cost.)

Trample, haste

At the beginning of your upkeep, put a lore counter on Mind Unbound, then draw a card for each lore counter on Mind Unbound.

Landfall — Whenever a land enters the battlefield under your control, you may have target player lose 3 life. If you do, put three +1/+1 counters on Ob Nixilis, the Fallen.

Enchant creature

At the beginning of your upkeep, enchanted creature's controller sacrifices it and you create a 1/1 colorless Myr artifact creature token.

When Perilous Myr dies, it deals 2 damage to any target.

: Prakhata Pillar-Bug gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)

First strike

Whenever Rakdos Ringleader deals combat damage to a player, that player discards a card at random.

: Regenerate Rakdos Ringleader.

Choose one —

• Tap X target permanents.

• Untap X target permanents.

Devoid (This card has no color.)

Search your library for a basic land card and reveal it. You may put that card onto the battlefield tapped if you control a land named Wastes. Otherwise, put that card into your hand. Then shuffle your library.

Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin.

Remove three +1/+1 counters from Runaway Steam-Kin: Add .

Scorchmark deals 2 damage to target creature. If that creature would die this turn, exile it instead.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)

Draw two cards. If you have the city's blessing, draw three cards instead.

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Germ creature token, then attach this to it.)

Equipped creature gets +2/+2.

Equip

: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

As long as Skittering Crustacean is monstrous, it has hexproof. (It can't be the target of spells or abilities your opponents control.)

: Untap Soliton.

: Add .

, , Sacrifice Spawning Bed: Create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."

Create a 3/3 colorless Golem artifact creature token.

Splice onto instant or sorcery (As you cast an instant or sorcery spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Temple of Triumph enters the battlefield tapped.

When Temple of Triumph enters the battlefield, scry 1.

: Add or .

, : You may put a historic permanent card from your hand onto the battlefield. (Artifacts, legendaries, and Sagas are historic.)

Whenever you crank Tread Mill, until end of turn, target creature gets +1/+2, gains vigilance, and becomes an artifact in addition to its other types.

Choose one —

• Target creature gets -6/-0 until end of turn.

• Switch target creature's power and toughness until end of turn.

Entwine (Choose both if you pay the entwine cost.)

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

: Regenerate Undercity Troll. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)