Niv-Mizzet Spellslinger

Return all attacking creatures to their owner's hand.

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

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Beacon Bolt deals damage to target creature equal to the total number of instant and sorcery cards you own in exile and in your graveyard.

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.)

Each player mills four cards. Return up to two instant and/or sorcery cards from your graveyard to your hand. Exile Bond of Insight.

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

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

Draw three cards.

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

{4}, {T}: Target opponent exiles cards from the top of their library until they exile an instant or sorcery card. You may cast that card without paying its mana cost. Then put the exiled cards that weren't cast this way on the bottom of that library in a random order.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

Target player shuffles their graveyard into their library.

Draw a card.

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

This spell can't be countered.

Counter target spell you don't control.

Overload {1}{U}{U}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Counter target spell.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Target player draws two cards.

Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchant creature

Enchanted creature has base power and toughness 0/4, has defender, loses all other abilities, and is a blue Wall in addition to its other colors and types.

{T}: Add {C}.

{1}{U}{R}, {T}: Draw a card, then discard 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.)

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.

Counter target spell with mana value 4 or greater.

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

Defender

Whenever you cast an instant or sorcery spell, Electrostatic Field deals 1 damage to each opponent.

Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard.

Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy.

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

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.)

Forgotten Cave enters the battlefield tapped.

{T}: Add {R}.

Cycling {R} ({R}, Discard this card: 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.

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

Equipped creature gets +2/+2 and has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Whenever Grafted Exoskeleton becomes unattached from a permanent, sacrifice that permanent.

Equip {2}

Whenever you cast an instant or sorcery spell, Guttersnipe deals 2 damage to each opponent.

Highland Lake enters the battlefield tapped.

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

Flying, haste

You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)

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.

({T}: Add {U}.)

Izzet Boilerworks enters the battlefield tapped.

When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand.

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

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.

Izzet Guildgate enters the battlefield tapped.

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

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

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)

Equip {0}

Lightning Strike deals 3 damage to any target.

Lonely Sandbar enters the battlefield tapped.

{T}: Add {U}.

Cycling {U} ({U}, Discard this card: Draw a card.)

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

Play with the top card of your library revealed.

You may cast instant and sorcery spells from the top of your library.

Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy.

({T}: Add {R}.)

Myriad Landscape enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

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.)

Counter target noncreature spell.

This spell can't be countered.

Flying

Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.

Whenever a player casts an instant or sorcery spell, you draw a card.

Scry 1.

Draw a card.

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

Draw three cards.

Addendum — If you cast this spell during your main phase, instead scry 3, then draw three cards.

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

Whenever you cast an instant or sorcery spell, put a charge counter on Primal Amulet. Then if there are four or more charge counters on it, you may remove those counters and transform it.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand.

Whenever you draw a card, each opponent loses 1 life.

The next sorcery spell you cast this turn can be cast as though it had flash. (It can be cast any time you could cast an instant.)

Draw a card.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

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

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

Flying, trample

Spellheart Chimera's power is equal to the number of instant and sorcery cards in your graveyard.

Exile target instant or sorcery card from your graveyard and target instant or sorcery card from an opponent's graveyard. Copy those cards. Cast the copies if able without paying their mana costs. Exile Spelltwine.

{T}: Add {C}.

{T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

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

{T}: Add {C}{C}. Activate only if you control five or more lands.

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.

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

Draw two cards.

Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)

Draw three cards.

Return target creature to its owner's hand.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.