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Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color....

Whenever you draw your second card each turn, target opponent loses 2 life and you gain 2 life. {T}, Sacrifice another creature: Draw a card. You m...

When Invasion of Alara enters the battlefield, exile cards from the top of your library until you exile two nonland cards with mana value 4 or less...

When Serum Visionary enters the battlefield, draw a card, then scry 2.

Legendary Riptide Specialization (You may only have 1 Buzzsaw Trap in your deck and only if your hero is Riptide.) When this defends an attack wit...

Flying Ward—{3}, Pay 3 life. Whenever you cast a noncreature spell, create X 1/1 red Phyrexian Goblin creature tokens, where X is the mana value of...

Flying Cephalopod Sentry's power is equal to the number of artifacts you control.

{T}: Add {C}. Spend this mana only to cast a colorless spell or to activate an ability.

Whenever Transplant Theorist or another artifact enters the battlefield under your control, you may draw a card. If you do, discard a card. {2}: Pu...

Counter target spell unless its controller pays {2}. Corrupted — Counter that spell instead if its controller has three or more poison counters.

{T}: Add {C}. Spend this mana only to cast a colorless spell or to activate an ability.

Landfall — Whenever a land enters the battlefield under your control, you get {E} (an energy counter). {T}, Pay six {E}: Draw three cards.

Lifelink, toxic 1 Whenever you proliferate, choose one — • If you don't control a creature named The Hollow Sentinel, create The Hollow Sentinel, a...

Flash Flying When Electrozoa enters the battlefield, you get {E}{E} (two energy counters). At the beginning of your precombat main phase, tap Elect...

Flash Flying When Electrozoa enters the battlefield, you get {E}{E} (two energy counters). At the beginning of your precombat main phase, tap Elect...

This spell costs {1} less to cast for each card you've drawn this turn. The owner of target nonland permanent puts it into their library second fro...

You may have Copycrook enter the battlefield as a copy of any creature on the battlefield, except it has "Whenever this creature attacks, it conniv...

Draw four cards, then put two cards from your hand on top of your library in any order.

{T}: You get {E}{E} (two energy counters). {T}, Pay {E}{E}: Tap target creature. {T}, Pay {E}{E}{E}: Draw a card. Pay {E}{E}{E}{E}: Bespoke Battlew...

{T}: You get {E}{E} (two energy counters). {T}, Pay {E}{E}: Tap target creature. {T}, Pay {E}{E}{E}: Draw a card. Pay {E}{E}{E}{E}: Bespoke Battlew...

Choose target spell. You get {E}{E} (two energy counters), then you may pay any amount of {E}. Counter that spell unless its controller pays {1} fo...

Vigilance At the beginning of your upkeep, tap this creature. Whenever you draw your second card each turn, untap this creature.

Firebending 2 (Whenever this creature attacks, add {R}{R}. This mana lasts until end of combat.) When Azula enters, target opponent exiles a nontok...

As an additional cost to cast this spell, waterbend {X}. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one...