Whenever you cast an instant or sorcery spell, flip a coin. If you lose the flip, return that spell to its owner's hand. If you win the flip, copy that spell, and you may choose new targets for the copy. Partner (You can have two commanders if both have partner.)

Magecraft — Whenever you cast or copy an instant or sorcery spell, draw a card.

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

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Draw a card.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flick a Coin deals 1 damage to any target. You create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Draw a card.

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

({U/P} can be paid with either {U} or 2 life.) Look at target player's hand. Draw a card.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Shuffle your library. Then exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Storm (When you cast this spell, copy it for each spell cast before it this turn.)

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

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.)

Each opponent gets a poison counter. Draw a card.

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.

Target player mills two cards. Draw a card.

As an additional cost to cast this spell, discard a card. Draw two cards.

Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard. If a spell cast from your graveyard this way would be put into your graveyard, exile it instead. Choose a Background (You can have a Background as a second commander.)

When this enchantment enters, the Ring tempts you. Whenever you cast an instant or sorcery spell, this enchantment deals 2 damage to each opponent.

Choose one — • Abrade deals 3 damage to target creature. • Destroy target artifact.

Counter target spell.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

Grapeshot deals 1 damage to any target. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Choose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell.

Lightning Bolt deals 3 damage to any target.

If an opponent controls an Island and you control a Mountain, you may cast this spell without paying its mana cost. Destroy target artifact.

Counter target noncreature spell.

Return target creature to its owner's hand. Untap up to two lands.

Tectonic Hazard deals 1 damage to each opponent and each creature they control.

{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}: Add {U}.)

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {U}{R}.

({T}: Add {R}.)

{T}: Add {C}. {T}: Add {U} or {R}. This land deals 1 damage to you.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Create a token that's a copy of target creature you control. Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flash When this creature enters, copy target instant or sorcery spell. You may choose new targets for the copy.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) If an ability of a Shaman or another Wizard you control triggers, that ability triggers an additional time.

If you would flip a coin, instead flip two coins and ignore one.

Create a token that's a copy of target creature you control. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Whenever you cast or copy an instant or sorcery spell, Ral deals 1 damage to target opponent or planeswalker. +2: Scry 1. −2: When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

Strive — This spell costs {2}{R} more to cast for each target beyond the first. Choose any number of target creatures you control. For each of them, create a token that's a copy of that creature, except it has haste. Exile those tokens at the beginning of the next end step.

If you would copy a spell one or more times, instead copy it that many times plus an additional time. You may choose new targets for the additional copy. {7}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

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

Instant and sorcery spells you cast cost {1} less to cast. Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

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.

Add {R}{R}{R}. Splice onto Arcane {1}{R} (As you cast an Arcane 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.)

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

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

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

Add {R} for each tapped land your opponents control.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

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

Add {R}{R}{R}.

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

Add {R}{R}{R}{R}{R}.

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

{T}, Tap an untapped creature you control: Add one mana of any color.

This creature gets +1/+0 for each artifact you control. Magecraft — Whenever you cast or copy an instant or sorcery spell, create a Treasure token.

Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}: Add {C}. {T}: Add {U} or {R}. This artifact deals 1 damage to you.

Whenever you win a coin flip, create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.") {1}, {T}, Sacrifice another permanent: Flip a coin.