Whenever you cast a noncreature spell, target creature gets +X/+0 until end of turn, where X is that spell's mana value. Choose a Background (You can have a Background as a second commander.)

Enchant creature Enchanted creature gets +1/+0 and can't be blocked.

Enchant creature Enchanted creature can't be blocked. Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Enchant creature Enchanted creature gets +1/+1 and has flying.

Target creature gets +1/+0 until end of turn and can't be blocked this turn. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Enchant creature Enchanted creature has flying and "Whenever this creature deals combat damage to a player, venture into the dungeon." (Enter the first room or advance to the next room.)

Enchant creature Enchanted creature gets +2/+2 and has flying.

Enchant creature As long as enchanted creature is attacking alone, it can't be blocked. Enchanted creature has "Whenever this creature deals combat damage to a player, it connives." (Its controller draws a card, then discards a card. If they discarded a nonland card, they put a +1/+1 counter on this creature.)

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

At the beginning of combat on your turn, target creature you control gains double strike until end of turn.

Double target creature's power until end of turn. Flashback {4}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature gains double strike until end of turn. When you roll a natural 20, return this card from your graveyard to your hand. (A natural 20 is a roll that displays 20 on the die.)

Equipped creature gets +4/+0 and has trample. Equip {4} Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Target creature gains double strike until end of turn. Cycling {2} ({2}, Discard this card: Draw a card.)

Enchant creature Enchanted creature gets +3/+0 as long as it's attacking. Otherwise, it gets -2/-1.

Target creature gains double strike until end of turn. Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Choose one — • When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. • Target creature you control gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Target creature gets +1/+1 and gains double strike until end of turn.

Whenever you cast your first instant or sorcery spell each turn, copy that spell. You may choose new targets for the copy.

When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

When you next cast an instant or sorcery spell with mana value 4 or less this turn, copy that spell. You may choose new targets for the copy. Foretell {R} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color that a land an opponent controls could produce.

{1}, {T}: Add {U}{R}.

{T}, Pay 1 life: Add {U} or {R}. {1}, {T}, Sacrifice this land: Draw a card.

As this land enters, you may reveal an Island or Mountain card from your hand. If you don't, this land enters tapped. {T}: Add {U} or {R}.

({T}: Add {U}.)

({T}: Add {R}.)

Instant and sorcery spells you cast cost {1} less to cast. To solve — You've cast four or more instant and sorcery spells this turn. (If unsolved, solve at the beginning of your end step.) Solved — Whenever you cast an instant or sorcery spell, draw a card.

Instant and sorcery spells you cast cost {1} less to cast.

Whenever this creature attacks, instant and sorcery spells you cast this turn cost {1} less to cast. Encore {3}{R} ({3}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Enchant creature Enchanted creature has menace and "Whenever this creature deals combat damage to a player, create a Treasure token." (It can't be blocked except by two or more creatures. The token is an artifact with "{T}, Sacrifice this token: Add one mana of any color.") When enchanted creature dies, draw a card.

Counter target instant spell.

You may sacrifice a Mountain rather than pay this spell's mana cost. Destroy target artifact.

You may discard a Mountain card rather than pay this spell's mana cost. Flameshot deals 3 damage divided as you choose among one, two, or three target creatures.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Return target nonland permanent you control and target nonland permanent you don't control to their owners' hands.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Choose one — • Destroy target artifact. • Target creature gets +3/+2 and gains trample until end of turn.

Put a double strike counter on target creature, then goad each creature that had a double strike counter 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.) Overload {4}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Enchant creature you control When this Aura enters, draw a card. Enchanted creature gets +1/+1 and has flying.

Enchant creature Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card." As long as enchanted creature is legendary, it gets +1/+1 and has ward {1}. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

Enchant creature Whenever enchanted creature deals damage to an opponent, you may draw a card.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.

This spell costs {2} less to cast if you control a Dragon. Draw three cards.

Enchant creature you control When this Aura enters, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.) Enchanted creature gets +1/+1 and has trample.

Draw two cards, then discard two cards. Untap up to three lands.

Exile the top three cards of your library. Until the end of your next turn, you may play those cards. Create three Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Draw a card, then draw a card for each other instant and sorcery spell you've cast this turn. Plot {3}{U} (You may pay {3}{U} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Scry 1. (Look at the top card of your library. You may put that card on the bottom.) Draw a card.

As an additional cost to cast this spell, discard a card. Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle. Draw a card at the beginning of the next turn's upkeep.

Enchant permanent When this Aura enters, draw a card. As long as enchanted permanent is a creature, it has flying. As long as enchanted permanent is an Equipment, it has "Equipped creature has flying."

Draw a card. Scry 2.

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Commander creatures you own have "At the beginning of your upkeep, exile the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. You may play that card this turn."

Enchant permanent Enchanted permanent has hexproof. When enchanted permanent leaves the battlefield, if it was historic, draw two cards. (Artifacts, legendaries, and Sagas are historic.)

Flash Enchant creature When this Aura enters, enchanted creature gains hexproof until end of turn. Enchanted creature gets +1/+0 and has flying.

Target creature you control gains hexproof until end of turn. Untap that creature. Until end of turn, it becomes a copy of up to one other target creature.

You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell.

Choose one — • Counter all other spells. • Switch each creature's power and toughness until end of turn. • Creatures can't be blocked this turn.

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

You may return three Islands you control to their owner's hand rather than pay this spell's mana cost. Counter target spell.