When you set this scheme in motion, until your next turn, whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Abandoned Outpost enters the battlefield tapped.

: Add .

, Sacrifice Abandoned Outpost: Add one mana of any color.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control."

Tap an untapped Cephalid you control: Tap target permanent.

: Tap all creatures without flying.

, : Tap target creature. Abyssal Hunter deals damage equal to Abyssal Hunter's power to that creature.

Flying, lifelink

Whenever Aclazotz attacks, each opponent discards a card. For each opponent who can't, you draw a card.

Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying.

When Aclazotz dies, return it to the battlefield tapped and transformed under its owner's control.

Target creature gets +1/+3 and gains flying until end of turn. Untap it.

Untap target creature. It gets +2/+2 until end of turn and can block an additional creature this turn.

Tap two untapped artifacts and/or creatures you control: Put a +1/+1 counter on Adaptive Gemguard. Activate only as a sorcery.

Flying

, Discard two cards: Return Advanced Stitchwing from your graveyard to the battlefield tapped.

Aeon Engine enters the battlefield tapped.

, Exile Aeon Engine: Reverse the game's turn order. (For example, if play had proceeded clockwise around the table, it now goes counterclockwise.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Target creature gets +2/+2 and gains flying until end of turn.

Inspired — Whenever Aerie Worshippers becomes untapped, you may pay . If you do, create a 2/2 blue Bird enchantment creature token with flying.

Flying

When Aethersphere Harvester enters the battlefield, you get (two energy counters).

Pay : Aethersphere Harvester gains lifelink until end of turn.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Put target attacking or blocking creature on top of its owner's library.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

When Aftermath Analyst enters the battlefield, mill three cards.

, Sacrifice Aftermath Analyst: Return all land cards from your graveyard to the battlefield tapped.

: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

You may exert Ahn-Crop Champion as it attacks. When you do, untap all other creatures you control. (An exerted creature won't untap during your next untap step.)

Untap target creature. It gets +2/+2 and gains reach until end of turn. (It can block creatures with flying.)

Flash

Enchant creature

When Airtight Alibi enters the battlefield, untap enchanted creature. It gains hexproof until end of turn. If it's suspected, it's no longer suspected.

Enchanted creature gets +2/+2 and can't become suspected.

Whenever you attack a player with one or more equipped creatures, draw a card.

: You may unattach an Equipment from a creature you control. If you do, tap that creature and it gains indestructible until end of turn.

Cohort — , Tap an untapped Ally you control: Discard a card. If you do, draw a card.

Akoum Teeth enters the battlefield tapped.

: Add .

, : Tap target creature.

Whenever Alaborn Cavalier attacks, you may tap target creature.

First strike

Whenever Alesha, Who Smiles at Death attacks, you may pay . If you do, return target creature card with power 2 or less from your graveyard to the battlefield tapped and attacking.

Other artifact creatures you control have haste.

Whenever one or more artifact creatures you control attack, Alibou, Ancient Witness deals X damage to any target and you scry X, where X is the number of tapped artifacts you control.

Alley Assailant enters the battlefield tapped.

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

When Alley Assailant is turned face up, target opponent loses 3 life and you gain 3 life.

When Alpine Guide enters the battlefield, you may search your library for a Mountain card, put that card onto the battlefield tapped, then shuffle.

Alpine Guide attacks each combat if able.

When Alpine Guide leaves the battlefield, sacrifice a Mountain.

Vigilance (Attacking doesn't cause this creature to tap.)

, , Exile a creature you control: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

You may choose not to untap Amber Prison during your untap step.

, : Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as Amber Prison remains tapped.

Whenever a permanent enters the battlefield tapped and under your control, untap it.

Whenever Anafenza, the Foremost attacks, put a +1/+1 counter on another target tapped creature you control.

If a nontoken creature an opponent owns would die or a creature card not on the battlefield would be put into an opponent's graveyard, exile that card instead.

As Ancient Amphitheater enters the battlefield, you may reveal a Giant card from your hand. If you don't, Ancient Amphitheater enters the battlefield tapped.

: Add or .

: Regenerate Ancient Silverback. (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.)

Equipped creature gets +3/+1.

Whenever equipped creature attacks, create two tapped 1/1 white Spirit creature tokens with flying. If that creature is legendary, instead create two of those tokens that are tapped and attacking.

Equip

Flash; convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Flying

When Angel of Salvation enters the battlefield, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost.

Cast this spell only during combat.

Create a 4/4 white Angel creature token with flying. Exile it at the beginning of the next end step.

+1: Each opponent discards a card and loses 2 life.

−3: Gain control of target creature until end of turn. Untap it. It gains haste until end of turn. Sacrifice it at the beginning of the next end step if it has mana value 3 or less.

−8: Each opponent loses life equal to the number of cards in their graveyard.

Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order.

Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.

Flash

When Annie Flash, the Veteran enters the battlefield, if you cast it, return target permanent card with mana value 3 or less from your graveyard to the battlefield tapped.

Whenever Annie Flash becomes tapped, exile the top two cards of your library. You may play those cards this turn.

Whenever Anzrag, the Quake-Mole becomes blocked, untap each creature you control. After this phase, there is an additional combat phase.

: Anzrag must be blocked each combat this turn if able.

Whenever Apes of Rath attacks, it doesn't untap during its controller's next untap step.

: Untap target artifact or creature.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

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 Apocalypse Demon unless you sacrifice another creature.

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of creatures you control.

Reach

Tap an untapped Spider you control: Search your graveyard and/or library for a card named Arachnus Web and put it onto the battlefield attached to target creature. If you search your library this way, shuffle.

Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.)

Whenever a creature you control attacks, if it enlisted a creature this combat, the creature that attacked gains double strike until end of turn. If that creature's power is 4 or greater, draw a card.

When Arbalest Engineers enters the battlefield, choose one —

• Arbalest Engineers deals 1 damage to any target.

• Put a +1/+1 counter on target creature. It gains trample and haste until end of turn.

• Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")