Flying

When Aether Swooper enters the battlefield, you get (two energy counters).

Whenever Aether Swooper attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.

Flying

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

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

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Artifact spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting an artifact spell pays for or one mana of that creature's color.)

Whenever Crosstown Courier deals combat damage to a player, that player mills that many cards.

When Dispersal Technician enters the battlefield, you may return target artifact to its owner's hand.

When you cycle Esper Sojourners or it dies, you may tap or untap target permanent.

Cycling (, Discard this card: Draw a card.)

Artifact spells you cast cost less to cast.

Flash

When Ethersworn Shieldmage enters the battlefield, prevent all damage that would be dealt to artifact creatures this turn.

Whenever you cast an artifact spell, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Activated abilities of artifacts you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

Other blue creatures you control get +1/+1.

: Target artifact creature becomes blue until end of turn.

Tap an untapped blue creature you control: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts.

When Hotshot Investigators enters the battlefield, return up to one other target creature to its owner's hand. If you controlled it, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Flying

When Isperia's Skywatch enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

When Janjeet Sentry enters the battlefield, you get (two energy counters).

, Pay : You may tap or untap target artifact or creature.

Master of Etherium's power and toughness are each equal to the number of artifacts you control.

Other artifact creatures you control get +1/+1.

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

When Mizzium Meddler enters the battlefield, you may change a target of target spell or ability to Mizzium Meddler.

Flying, vigilance

Mutagen Connoisseur gets +1/+0 for each transformed permanent you control.

, : Nin, the Pain Artist deals X damage to target creature. That creature's controller draws X cards.

Artifacts you control have hexproof.

At the beginning of your upkeep, if you control the artifact with the highest mana value or tied for the highest mana value, draw a card.

Whenever another blue creature enters the battlefield under your control, target player mills two cards.

Flying

Whenever Schema Thief deals combat damage to a player, create a token that's a copy of target artifact that player controls.

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

Whenever Shielded Aether Thief blocks, you get (an energy counter).

, Pay : Draw a card.

When Specimen Collector enters the battlefield, create a 1/1 green Squirrel creature token and a 0/3 blue Crab creature token.

When Specimen Collector dies, create a token that's a copy of target token you control.

When Surveillance Monitor enters the battlefield, you may collect evidence 4. (Exile cards with total mana value 4 or greater from your graveyard.)

Whenever you collect evidence, create a 1/1 colorless Thopter artifact creature token with flying.

: Add . Spend this mana only to cast spells with mana value 5 or greater or spells with in their mana costs.

, : Draw a card, then discard a card.

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

When Vedalken Aethermage enters the battlefield, return target Sliver to its owner's hand.

Wizardcycling (, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)

Whenever you cast an artifact spell, draw a card.

Metalcraft — : Tap target artifact, creature, or land. Activate only if you control three or more artifacts.

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

Whenever Vedalken Ghoul becomes blocked, defending player loses 4 life.

Metalcraft — Whenever Vedalken Humiliator attacks, if you control three or more artifacts, creatures your opponents control lose all abilities and have base power and toughness 1/1 until end of turn.

At the beginning of your upkeep, you may put a charge counter on target artifact.

Whenever Vedalken Mesmerist attacks, target creature an opponent controls gets -2/-0 until end of turn.

When Vedalken Plotter enters the battlefield, exchange control of target land you control and target land an opponent controls.

Graft 2 (This creature enters the battlefield with two +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.)

: Untap target creature with a +1/+1 counter on it.