At the beginning of your upkeep, you may put a charge counter on Aether Vial.

{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield.

Flash

This spell costs {1} less to cast for each attacking creature.

Trample

When Ancient Stone Idol dies, create a 6/12 colorless Construct artifact creature token with trample.

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

As Brass Herald enters the battlefield, choose a creature type.

When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Creatures of the chosen type get +1/+1.

{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Defender, indestructible

{10}: Monstrosity 10. (If this creature isn't monstrous, put ten +1/+1 counters on it and it becomes monstrous.)

As long as Colossus of Akros is monstrous, it has trample and can attack as though it didn't have defender.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Colossus of Sardia doesn't untap during your untap step.

{9}: Untap Colossus of Sardia. Activate only during your upkeep.

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

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

When Crumbling Colossus attacks, sacrifice it at end of combat.

Protector -- Other artifact creatures you control have hexproof.

Indestructible

{T}: Add {C}.

Trample, indestructible

If Darksteel Colossus would be put into a graveyard from anywhere, reveal Darksteel Colossus and shuffle it into its owner's library instead.

Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.)

Indestructible

{T}: Add one mana of any color.

Flash (You may cast this spell any time you could cast an instant.)

Vigilance

Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

If an effect would put one or more counters on a permanent you control, it puts twice that many of those counters on that permanent instead.

{T}: Add {C}.

{4}: Dread Statuary becomes a 4/2 Golem artifact creature until end of turn. It's still a land.

Colorless creatures you control get +2/+2.

Whenever you tap a permanent for {C}, add an additional {C}.

Whenever you cast a colorless spell, you gain 2 life.

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

Trample

Whenever Geode Golem deals combat damage to a player, you may cast your commander from the command zone without paying its mana cost. (You still pay any additional costs.)

Defender

{2}: Golden Guardian fights another target creature you control. When Golden Guardian dies this turn, return it to the battlefield transformed under your control.

(Transforms from Golden Guardian.)

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

{4}, {T}: Create a 4/4 colorless Golem artifact creature token.

{2}: Target artifact creature gets +1/+1 until end of turn.

{2}: Target artifact creature gains your choice of flying, trample, or haste until end of turn.

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.

Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

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}{C}.

{2}, {T}, Sacrifice Hedron Archive: Draw two cards.

Whenever Howling Golem attacks or blocks, each player draws a card.

When Ich-Tekik, Salvage Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

Whenever an artifact is put into a graveyard from the battlefield, put a +1/+1 counter on Ich-Tekik and a +1/+1 counter on each Golem you control.

Partner (You can have two commanders if both have partner.)

Flying

Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

+1: Create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

-1: Pay any amount of mana. Look at that many cards from the top of your library, then put one of those cards into your hand and the rest on the bottom of your library in a random order.

-7: You get an emblem with "Tap an untapped artifact you control: This emblem deals 1 damage to any target."

Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn.

{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.

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

Equip {0}

Nonartifact spells cost {1} more to cast.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.

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

Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

{3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)

When Maul Splicer enters the battlefield, create two 3/3 colorless Phyrexian Golem artifact creature tokens.

Golem creatures you control have trample.

When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.

Metalcraft -- {T}: Add one mana of any color. Activate only if you control three or more artifacts.

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

Artifact creature spells you cast have affinity for artifacts. (They cost {1} less to cast for each artifact you control.)

All permanents are artifacts in addition to their other types.

All cards that aren't on the battlefield, spells, and permanents are colorless.

Players may spend mana as though it were mana of any color.

When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

When Phyrexian Triniform dies, create three 3/3 colorless Phyrexian Golem artifact creature tokens.

Encore {12} ({12}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Your life total can't change. (You can't gain or lose life. You can't pay any amount of life except 0.)

Power Depot enters the battlefield tapped.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast artifact spells or activate abilities of artifacts.

Modular 1

When Precursor Golem enters the battlefield, create two 3/3 colorless Golem artifact creature tokens.

Whenever a player casts an instant or sorcery spell that targets only a single Golem, that player copies that spell for each other Golem that spell could target. Each copy targets a different one of those Golems.

You have no maximum hand size.

{T}: Add {C}.

You may have Sculpting Steel enter the battlefield as a copy of any artifact on the battlefield.

Flash

You may cast artifact spells as though they had flash.

{T}: Add {C}.

{T}: Add {C}{C}. Spend this mana only to cast colorless spells. Activate only if you control seven or more lands.

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

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When Solemn Simulacrum dies, you may draw a card.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

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

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith.

At the beginning of combat on your turn, if The Ozolith has counters on it, you may move all counters from The Ozolith onto target creature.

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

Vigilance

{T}, Sacrifice Tormod's Cryptkeeper: Exile target player's graveyard.

{T}: Add {C}.

{X}{X}, {T}, Sacrifice Treasure Vault: Create X Treasure tokens.

{T}: Add {G}.

Flying, vigilance, trample

When Triplicate Titan dies, create a 3/3 colorless Golem artifact creature token with flying, a 3/3 colorless Golem artifact creature token with vigilance, and a 3/3 colorless Golem artifact creature token with trample.

Untap all artifacts you control during each other player's untap step.

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

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

I -- Urza's Saga gains "{T}: Add {C}."

II -- Urza's Saga gains "{2}, {T}: 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 {0} or {1}, put it onto the battlefield, then shuffle.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

When Vital Splicer enters the battlefield, create a 3/3 colorless Phyrexian Golem artifact creature token.

{1}: Regenerate target Golem you control.

Sacrifice Welding Jar: Regenerate target artifact.