{3}, {T}: Regenerate target artifact creature.

{4}, Sacrifice Copper Gnomes: You may put an artifact card from your hand onto the battlefield.

Epochrasite enters the battlefield with three +1/+1 counters on it if you didn't cast it from your hand.

When Epochrasite dies, exile it with three time counters on it and it gains suspend. (At the beginning of your upkeep, remove a time counter. When the last is removed, cast this card without paying its mana cost. It has haste.)

{2}, Discard a card: Put a +1/+1 counter on Flowstone Sculpture or Flowstone Sculpture gains flying, first strike, or trample. (This effect lasts indefinitely.)

Defender (This creature can't attack.)

When a creature attacks you or a planeswalker you control, if Guardian of the Ages has defender, it loses defender and gains trample.

{2}: Regenerate target artifact creature.

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.

Nonartifact spells cost {1} more to cast.

Trample

Tap an untapped artifact you control: Lodestone Myr gets +1/+1 until end of turn.

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.)

When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens.

Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

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

Trample

When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.

Flash

You may cast artifact spells as though they had flash.

Whenever Spincrusher blocks, put a +1/+1 counter on it.

Remove a +1/+1 counter from Spincrusher: Spincrusher can't be blocked this turn.

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.)

{4}, {T}, Remove a +1/+1 counter from Suncrusher: Destroy target creature.

{2}, Remove a +1/+1 counter from Suncrusher: Return Suncrusher to its owner's hand.

Flying

Tetravus enters the battlefield with three +1/+1 counters on it.

At the beginning of your upkeep, you may remove any number of +1/+1 counters from Tetravus. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted."

At the beginning of your upkeep, you may exile any number of tokens created with Tetravus. If you do, put that many +1/+1 counters on Tetravus.

Flying

Thopter Squadron enters the battlefield with three +1/+1 counters on it.

{1}, Remove a +1/+1 counter from Thopter Squadron: Create a 1/1 colorless Thopter artifact creature token with flying. Activate only as a sorcery.

{1}, Sacrifice another Thopter: Put a +1/+1 counter on Thopter Squadron. Activate only as a sorcery.

{2}: Untap target artifact creature.

Workhorse enters the battlefield with four +1/+1 counters on it.

Remove a +1/+1 counter from Workhorse: Add {C}.