{U}, Sacrifice Aether Spellbomb: Return target creature to its owner's hand. {1}, Sacrifice Aether Spellbomb: Draw a card.

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

Sacrifice a creature: Add {C}{C}.

{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

Indestructible {T}: Add one mana of any color.

Guardian Idol enters the battlefield tapped. {T}: Add {C}. {2}: Guardian Idol becomes a 2/2 Golem artifact creature until end of turn.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

{T}: Add one mana of any color. {1}, {T}, Tap another untapped artifact you control: Draw a card, then discard a card.

{T}: Add {C}. {1}, {T}: Add one mana of any color.

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

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

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

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

Whenever you cast a noncreature spell, Firebrand Archer deals 1 damage to each opponent.

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

Whenever one or more artifacts enter the battlefield under your control, Ingenious Artillerist deals that much damage to each opponent.

Whenever you cast a noncreature spell, Kessig Flamebreather deals 1 damage to each opponent.

Whenever an artifact enters the battlefield under your control, Reckless Fireweaver deals 1 damage to each opponent.

Exile Simian Spirit Guide from your hand: Add {R}.

Defender {T}: Thermo-Alchemist deals 1 damage to each opponent. Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

{1}, Sacrifice an artifact or creature: Makeshift Munitions deals 1 damage to any target.

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

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

Counter target spell.

Each player returns a creature they control to its owner's hand.

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Electrickery deals 1 damage to target creature you don't control. Overload {1}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Galvanic Blast deals 2 damage to any target. Metalcraft — Galvanic Blast deals 4 damage instead if you control three or more artifacts.

({R/P} can be paid with either {R} or 2 life.) Gut Shot deals 1 damage to any target.

Draw a card for each attacking creature.

Lightning Bolt deals 3 damage to any target.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Counter target spell unless its controller pays {3}.

Target creature you control gets +0/+1 and gains hexproof until end of turn. Overload {1}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Scry 1. Draw a card.

Attacking creatures get +X/+0 until end of turn, where X is the number of players being attacked. Draw a card.

Draw two cards, then sacrifice a permanent.

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

Counter target spell that targets a permanent you control.

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 artifact: Add one mana of any color.")

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({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}.

({T}: Add {R}.)

{T}: Add {U}.

Silverbluff Bridge enters the battlefield tapped. Indestructible {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}.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Thriving Bluff enters the battlefield tapped. As Thriving Bluff enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

Thriving Isle enters the battlefield tapped. As Thriving Isle enters the battlefield, choose a color other than blue. {T}: Add {U} or one mana of the chosen color.

Choose a creature type. Draw a card for each permanent you control of that type.

Create two 1/1 red Goblin creature tokens.

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.)

Return target instant or sorcery card from your graveyard to your hand. Exile Flood of Recollection.

Create two 1/1 red Goblin creature tokens.

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

This spell costs {2} less to cast if you control a Human creature and a non-Human creature. Draw two cards.

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 artifact: Add one mana of any color.")

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.)

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying. Foretell {U} (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.)

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

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

Draw a card. Scry 2.

As an additional cost to cast this spell, tap four untapped creatures you control. Draw three cards.

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.

Choose one — • Destroy target artifact. • Destroy target creature with defender. • Smash to Dust deals 1 damage to each creature your opponents control.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Draw two cards.

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