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

{T}, Sacrifice a creature: Blasting Station deals 1 damage to any target. Whenever a creature enters the battlefield, you may untap Blasting Station.

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

As an additional cost to cast this spell, sacrifice an artifact or creature. Ward {2} When Dusk Rose Reliquary enters the battlefield, exile target artifact or creature an opponent controls until Dusk Rose Reliquary leaves the battlefield.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on Everflowing Chalice.

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

Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager. Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.

Vigilance Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell. Sacrifice Boromir, Warden of the Tower: Creatures you control gain indestructible until end of turn. The Ring tempts you.

Flash {1}, Sacrifice Cathar Commando: Destroy target artifact or enchantment.

When Cathodion dies, add {C}{C}{C}.

When Circuit Mender enters the battlefield, you gain 2 life. When Circuit Mender leaves the battlefield, draw a card.

Artifacts your opponents control enter the battlefield tapped. {X}{X}{W}, Sacrifice Dauntless Dismantler: Destroy each artifact with mana value X.

When Filigree Familiar enters the battlefield, you gain 2 life. When Filigree Familiar dies, draw a card.

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

When Ingenious Smith enters the battlefield, look at the top four cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. Whenever one or more artifacts enter the battlefield under your control, put a +1/+1 counter on Ingenious Smith. This ability triggers only once each turn.

Vigilance When Loran of the Third Path enters the battlefield, destroy up to one target artifact or enchantment. {T}: You and target opponent each draw a card.

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Flying

Magical Tinkering — {W}, {T}, Sacrifice an artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Sacrifice Salvager of Ruin: Choose target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand.

Flash When Samwise the Stouthearted enters the battlefield, choose up to one target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand. Then the Ring tempts you.

When Sanitation Automaton enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Flash You may cast artifact spells as though they had flash.

Flying When Skyscanner enters the battlefield, draw a card.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Return target spell to its owner's hand. Draw a card.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

{T}: Add {W}.

{T}: Add {C}. {2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

Indestructible {T}: Add {C}.

{T}: Add {C}. {2}, {T}, Sacrifice Demolition Field: Destroy target nonbasic land an opponent controls. That land's controller may search their library for a basic land card, put it onto the battlefield, then shuffle. You may search your library for a basic land card, put it onto the battlefield, then shuffle.

{T}: Add {C}. {1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash.

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

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.

({T}: Add {W}.)