Flying
When Foundry Hornet enters the battlefield, if you control a creature with a +1/+1 counter on it, creatures your opponents control get -1/-1 until end of turn.
Its buzzing is easily mistaken for the hum of a thopter's wings.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Flying
: Freejam Regent gets +2/+0 until end of turn.
The dragons perching in Freejam's towers symbolize the zone's fierce independence.
Menace
Whenever Glint-Sleeve Siphoner enters the battlefield or attacks, you get (an energy counter).
At the beginning of your upkeep, you may pay . If you do, you draw a card and you lose 1 life.
Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control, you get (two energy counters).
Pay , Exile Gonti's Aether Heart: Take an extra turn after this one.
Despite the magic that sustains Gonti's life, the crime lord is often described as heartless.
Whenever you lose life for the first time each turn, you get . (You get an energy counter. Damage causes loss of life.)
Pay , Sacrifice Gonti's Machinations: Each opponent loses 3 life. You gain life equal to the life lost this way.
"I am confident that all our enterprises can benefit from this little revolution."
Enchant artifact
At the beginning of your end step, Gremlin Infestation deals 2 damage to enchanted artifact's controller.
When enchanted artifact is put into a graveyard, create a 2/2 red Gremlin creature token.
Flying, vigilance
Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)
You may remove a loyalty counter from a planeswalker you control rather than pay Heart of Kiran's crew cost.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Flying
At the beginning of your end step, each opponent discards a card.
, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.
Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, create a 1/1 colorless Servo artifact creature token.
, Sacrifice a creature: Scry 1.