Nonartifact spells you cast have improvise. (Your artifacts can help cast those spells. Each artifact you tap after you're done activating mana abilities pays for .)
Flying, vigilanceCrew 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.
First strike, menaceWhenever Kari Zev, Skyship Raider attacks, create Ragavan, a legendary 2/1 red Monkey creature token. Ragavan enters tapped and attacking. Exile that token at end of combat.
+2: Put two +1/+1 counters on up to one target creature.+1: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.−11: Put X +1/+1 counters on target creature, where X is your life total. That creature gains trample until end of turn.
Whenever Gonti's Aether Heart or another artifact you control enters, you get (two energy counters).Pay eight , Exile Gonti's Aether Heart: Take an extra turn after this one.
Destroy target creature if it has mana value 2 or less.Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent you controlled left the battlefield this turn.
, Sacrifice Implement of Ferocity: Put a +1/+1 counter on target creature. Activate only as a sorcery.When Implement of Ferocity is put into a graveyard from the battlefield, draw a card.
Return up to three target artifacts and/or creatures to their owners' hands.You may cast a spell with mana value 4 or less from your hand without paying its mana cost.
+1: Reveal cards from the top of your library until you reveal an artifact card. Put that card into your hand and the rest on the bottom of your library in a random order.−3: Target opponent loses life equal to the number of artifacts you control.−8: Gain control of all artifacts and creatures target opponent controls.
TrampleWhenever Untethered Express attacks, put a +1/+1 counter on it.Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)
: Another target Vehicle you control becomes an artifact creature until end of turn.Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.)
MenaceWhenever Glint-Sleeve Siphoner enters 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.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)FlyingAt the beginning of your end step, each opponent discards a card., Sacrifice an artifact: Target creature gets -2/-2 until end of turn.
Whenever Scrap Trawler or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)Target creature gets -X/-X until end of turn. You gain X life.
