{T}: Target artifact creature's controller sacrifices it. That player may search their library for a noncreature artifact card, put it onto the battlefield, then shuffle.

Flying

{R}: Artifact creatures you control get +1/+0 until end of turn.

Unearth {3}{R}{R} ({3}{R}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Counter target spell. If the spell is countered this way, exile it with three time counters on it instead of putting it into its owner's graveyard. If it doesn't have suspend, it gains suspend. (At the beginning of its owner's upkeep, remove a time counter from that card. When the last is removed, the player plays it without paying its mana cost. If it's a creature, it has haste.)

Whenever Dragonspark Reactor or another artifact enters the battlefield under your control, put a charge counter on Dragonspark Reactor.

{4}, Sacrifice Dragonspark Reactor: It deals damage equal to the number of charge counters on it to target player and that much damage to up to one target creature.

Creatures with power greater than the number of cards in your hand can't attack.

At the beginning of each player's draw step, that player draws two additional cards.

Galvanic Blast deals 2 damage to any target.

Metalcraft -- Galvanic Blast deals 4 damage instead if you control three or more artifacts.

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.)

Each player may play an additional land on each of their turns.

At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

{T}: Add {R}. Put a stash counter on Glittering Stockpile.

{T}, Sacrifice Glittering Stockpile: Add X mana of any one color, where X is the number of stash counters on Glittering Stockpile.

Spells cost {1} less to cast.

Flying

Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

{T}, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.

{T}: Put a charge counter on Lux Cannon.

{T}, Remove three charge counters from Lux Cannon: Destroy target permanent.

{1}, {T}: Untap another target artifact.

{3}, {T}: Target creature can't be blocked this turn.

{U}, {T}, Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.

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}.

{2}: Mirage Mirror becomes a copy of target artifact, creature, enchantment, or land until end of turn.

Whenever another nontoken artifact enters the battlefield under your control, you may pay {2}. If you do, create a token that's a copy of that artifact.

Cumulative upkeep--Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.

Create a token that's a copy of target creature you control.

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.)

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

Trample

{5}: Permanents you control gain indestructible until end of turn.

{5}, Exile Soul of New Phyrexia from your graveyard: Permanents you control gain indestructible until end of turn.

Flash

When Torrential Gearhulk enters the battlefield, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

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

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)