Gain control of target spell. You may choose new targets for it. (If that spell becomes a permanent, it enters the battlefield under your control.)

For each attacking creature, its owner puts it on the top or bottom of their library.

{T}: Add {C}.

{1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

Banefire deals X damage to any target.

If X is 5 or more, this spell can't be countered and the damage can't be prevented.

This spell costs {1} less to cast for each creature on the battlefield.

Blasphemous Act deals 13 damage to each creature.

Tap target creature you don't control.

Overload {3}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Any player may have Breaking Point deal 6 damage to them. If no one does, destroy all creatures. Creatures destroyed this way can't be regenerated.

Any player may have Browbeat deal 5 damage to them. If no one does, target player draws three cards.

Create a 5/5 blue and red Elemental creature token with flying.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand.

Whenever you cast an instant or sorcery spell, Charmbreaker Devils gets +4/+0 until end of turn.

{T}: Add one mana of any color.

{T}: Put a charge counter on Coalition Relic.

At the beginning of your precombat main phase, remove all charge counters from Coalition Relic. Add one mana of any color for each charge counter removed this way.

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

When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls.

{4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

+1: Target player draws two cards, then discards two cards.

-2: Gain control of target artifact.

-6: You get an emblem with "Whenever you cast a spell that targets one or more permanents, gain control of those permanents."

{T}: Add {C}.

{1}, {T}: Until end of turn, your opponents and creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

Electrolyze deals 2 damage divided as you choose among one or two targets.

Draw a card.

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Tap X target nonland permanents.

Highland Lake enters the battlefield tapped.

{T}: Add {U} or {R}.

Copy target instant or sorcery spell you control. If this spell was cast from a graveyard, copy that spell twice instead. You may choose new targets for the copies.

Flashback {3}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever you cast a planeswalker spell, you gain 1 life.

{T}: Add {C}.

{1}, {T}: Add two mana of different colors. Spend this mana only to cast planeswalker spells.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Haste

{R}, {T}: Exile target instant or sorcery card from your graveyard.

{1}{R}, {T}, Sacrifice Izzet Chemister: Cast any number of cards exiled with Izzet Chemister without paying their mana costs.

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

+1: Add {R}{R}{R}. Spend this mana only to cast instant or sorcery spells.

+1: Discard up to three cards, then draw that many cards.

-8: You get an emblem with "You may cast instant and sorcery spells from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead."

If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.

-2: Jaya, Venerated Firemage deals 2 damage to any target.

{T}: Add {C}.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Spells your opponents cast that target a creature or planeswalker you control cost {2} more to cast.

-2: Create a 2/2 blue Wizard creature token. Draw a card, then discard a card.

Indestructible

As long as your devotion to blue and red is less than seven, Keranos isn't a creature.

Reveal the first card you draw on each of your turns. Whenever you reveal a land card this way, draw a card. Whenever you reveal a nonland card this way, Keranos deals 3 damage to any target.

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land.

-2: Add {R} for each Mountain you control.

-5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to any target.'"

Lightning Bolt deals 3 damage to any target.

Mizzium Mortars deals 4 damage to target creature you don't control.

Overload {3}{R}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

+2: Target creature can't be blocked this turn.

-3: Draw two cards.

-10: Tap all creatures your opponents control. You take an extra turn after this one.

+1: Until your next turn, up to one target creature gets -5/-0.

-3: Return up to two target creatures to their owners' hands.

-7: Creatures you control with flying get +5/+5 until end of turn.

+2: Until your next turn, up to one target creature gets -2/-0 and loses flying.

-3: Create a 4/4 blue Elemental Bird creature token with flying.

-8: You get an emblem with "Islands you control have '{T}: Draw a card.'"

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Return target instant or sorcery card from your graveyard to your hand.

Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Each opponent can't draw more than one card each turn.

-2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

+1: Tap target permanent, then untap another target permanent.

-2: Ral Zarek deals 3 damage to any target.

-7: Flip five coins. Take an extra turn after this one for each coin that comes up heads.

+1: Draw a card.

-2: Ral, Caller of Storms deals 3 damage divided as you choose among one, two, or three targets.

-7: Draw seven cards. Ral, Caller of Storms deals 7 damage to each creature your opponents control.

+1: Look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

-3: Ral, Izzet Viceroy deals damage to target creature equal to the total number of instant and sorcery cards you own in exile and in your graveyard.

-8: You get an emblem with "Whenever you cast an instant or sorcery spell, this emblem deals 4 damage to any target and you draw two cards."

Whenever you cast or copy an instant or sorcery spell, Ral, Storm Conduit deals 1 damage to target opponent or planeswalker.

+2: Scry 1.

-2: When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Red Sun's Zenith deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead. Shuffle Red Sun's Zenith into its owner's library.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)

Copy target instant or sorcery spell. You may choose new targets for the copy.

You have no maximum hand size.

{T}: Add {C}.

When you next cast an instant spell, cast a sorcery spell, or activate a loyalty ability this turn, copy that spell or ability twice. You may choose new targets for the copies.

Copy target instant or sorcery spell. You may choose new targets for the copy.

{T}: Add {C}.

{4}, {T}: Target creature can't be blocked this turn.

+2: During target player's next turn, each creature that player controls attacks if able.

-2: Rowan Kenrith deals 3 damage to each tapped creature target player controls.

-8: Target player gets an emblem with "Whenever you activate an ability that isn't a mana ability, copy it. You may choose new targets for the copy."

Partner with Will Kenrith

Rowan Kenrith can be your commander.

+1: Up to one target creature gets +3/+0 and gains first strike until end of turn.

-2: Rowan, Fearless Sparkmage deals 1 damage to each of up to two target creatures. Those creatures can't block this turn.

-9: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.

Red spells you cast cost {1} less to cast.

+1: Scry 1. Saheeli Rai deals 1 damage to each opponent.

-2: Create a token that's a copy of target artifact or creature you control, except it's an artifact in addition to its other types. That token gains haste. Exile it at the beginning of the next end step.

-7: Search your library for up to three artifact cards with different names, put them onto the battlefield, then shuffle.

Whenever you cast a noncreature spell, create a 1/1 colorless Servo artifact creature token.

-2: Target artifact you control becomes a copy of another target artifact or creature you control until end of turn, except it's an artifact in addition to its other types.

+1: Create a 1/1 colorless Servo artifact creature token.

+1: The next spell you cast this turn costs {1} less to cast for each artifact you control as you cast it.

-7: For each artifact you control, create a token that's a copy of it. Those tokens gain haste. Exile those tokens at the beginning of the next end step.

Saheeli, the Gifted can be your commander.

Blue spells you cast cost {1} less to cast.

Draw a card. Scry 2.

{T}: Add {C}{C}.

Create a token that's a copy of target artifact or creature.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.

{T}: Add {U} or {R}.

Swiftwater Cliffs enters the battlefield tapped.

When Swiftwater Cliffs enters the battlefield, you gain 1 life.

{T}: Add {U} or {R}.

+1: Tap target permanent. It doesn't untap during its controller's next untap step.

-2: Draw a card for each tapped creature target player controls.

-8: You get an emblem with "You have no maximum hand size" and "Whenever a card is put into your graveyard from anywhere, you may return it to your hand."

+1: 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.

-1: Untap up to four target permanents.

-10: You get an emblem with "You may activate loyalty abilities of planeswalkers you control on any player's turn any time you could cast an instant."

Teferi, Temporal Archmage can be your commander.

Temple of Epiphany enters the battlefield tapped.

When Temple of Epiphany enters the battlefield, scry 1.

{T}: Add {U} or {R}.

At the beginning of your end step, if you didn't activate a loyalty ability of a planeswalker this turn, you lose 2 life.

{4}, {T}: For each planeswalker you control, you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn.

+1: Draw a card, then discard a card.

+1: Target creature gets +2/+0 and gains first strike and trample until end of turn.

-8: Draw four cards. When you do, The Royal Scions deals damage to any target equal to the number of cards in your hand.

Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell you've cast before it this turn. You may choose new targets for the copies.

Your opponents can't gain life.

-2: Create a 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."

+1: Draw a card, then discard a card at random.

-4: Tibalt, the Fiend-Blooded deals damage equal to the number of cards in target player's hand to that player.

-6: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.

Copy target instant or sorcery spell. You may choose new targets for the copy.

+2: Until your next turn, up to two target creatures each have base power and toughness 0/3 and lose all abilities.

-2: Target player draws two cards. Until your next turn, instant, sorcery, and planeswalker spells that player casts cost {2} less to cast.

-8: Target player gets an emblem with "Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy."

Partner with Rowan Kenrith

Will Kenrith can be your commander.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Untap target permanent and gain control of it until end of turn. It gains haste until end of turn.