Target noncreature artifact you control becomes a 0/0 artifact creature. Put four +1/+1 counters on each artifact that became a creature this way.

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

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

+1: The next spell you cast this turn costs 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.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Whenever Scion of Calamity deals combat damage to a player, destroy target artifact or enchantment that player controls.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

When Sepulchral Primordial enters the battlefield, for each opponent, you may put up to one target creature card from that player's graveyard onto the battlefield under your control.

When Simulacrum Synthesizer enters the battlefield, scry 2.

Whenever another artifact with mana value 3 or greater enters the battlefield under your control, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Whenever a nontoken artifact you control is put into a graveyard from the battlefield, create a 1/1 colorless Servo artifact creature token.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Whenever an artifact enters the battlefield under your control, untap Steelfin Whale.

Storm-Kiln Artist gets +1/+0 for each artifact you control.

Magecraft — Whenever you cast or copy an instant or sorcery spell, create a Treasure token.

Fading 4 <I>(This artifact enters the battlefield with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)</I>

At the beginning of each player's upkeep, that player taps an untapped artifact, creature, or land they control for each fade counter on Tangle Wire.

You lose X life and create X tapped Powerstone tokens. Then all creatures get -1/-1 until end of turn for each artifact you control. (The tokens are artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")

Destroy all creatures with power 3 or greater. Then create a Food token for each creature you control. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Affinity for Daleks (This spell costs less to cast for each Dalek you control.)

Other Daleks you control have haste.

At the beginning of combat on your turn, each opponent faces a villainous choice — That player sacrifices a creature they control, or you create a 3/3 black Dalek artifact creature token with menace.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Draw two cards.

Destroy target creature. You gain 1 life for each artifact you control.

You gain 1 life for each tapped artifact, creature, and land you control.

Flash

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

: Target creature gets +1/+0 until end of turn.

When Unstable Glyphbridge enters the battlefield, if you cast it, for each player, choose a creature with power 2 or less that player controls. Then destroy all creatures except creatures chosen this way.

Craft with artifact (, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

When Urza, Lord High Artificer enters the battlefield, create a 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control."

Tap an untapped artifact you control: Add .

: Shuffle your library, then exile the top card. Until end of turn, you may play that card without paying its mana cost.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Urza's Saga gains ": Add ."

II — Urza's Saga gains ", : Create a 0/0 colorless Construct artifact creature token with ‘This creature gets +1/+1 for each artifact you control.'"

III — Search your library for an artifact card with mana cost or , put it onto the battlefield, then shuffle.

Destroy target artifact you don't control.

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

: Add .

, Pay 1 life: Add one mana of any color. Spend this mana only to cast a Vampire spell.

, : Create a Blood token. This ability costs less to activate for each Vampire you control. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

+1: Up to two other target planeswalkers you control phase out at the beginning of the next end step. (Treat them and anything attached to them as though they don't exist until your next turn.)

−2: For each opponent, return up to one target nonland permanent that player controls to its owner's hand.

−7: Target artifact you control becomes a 9/9 Construct artifact creature and gains vigilance, indestructible, and "This creature can't be blocked."

(As this Saga enters and after your draw step, add a lore counter.)

I — For each opponent, up to one target noncreature artifact they control becomes a 0/4 Wall artifact creature with defender for as long as you control this Saga.

II — Create a 3/3 green Dinosaur creature token with trample. It gains haste until end of turn.

III — Destroy all Walls. Exile this Saga, then return it to the battlefield transformed under your control.