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 .)
Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, reveal the top card of your library. If it's a permanent card, you may put it onto the battlefield. Otherwise, you may put it on the bottom of your library.
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.
Scrounging Bandar enters with two +1/+1 counters on it.At the beginning of your upkeep, you may move any number of +1/+1 counters from Scrounging Bandar onto another target creature.
When Rishkar, Peema Renegade enters, put a +1/+1 counter on each of up to two target creatures.Each creature you control with a counter on it has ": Add ."
FlyingWhen Aether Swooper enters, you get (two energy counters).Whenever Aether Swooper attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.
When Treasure Keeper dies, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.
, 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.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)Whenever a nontoken artifact you control is put into a graveyard from the battlefield, create a 1/1 colorless Servo artifact creature token.
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.
When Peema Aether-Seer enters, you get an amount of (energy counters) equal to the greatest power among creatures you control.Pay : Target creature blocks this turn if able.
Double strike (This creature deals both first-strike and regular combat damage.)When Scrapper Champion enters, you get (two energy counters).Whenever Scrapper Champion attacks, you may pay . If you do, put a +1/+1 counter on it.
FlyingWhenever Skyship Plunderer deals combat damage to a player, for each kind of counter on target permanent or player, give that permanent or player another counter of that kind.
Monstrous Onslaught deals X damage divided as you choose among any number of target creatures, where X is the greatest power among creatures you control as you cast this spell.
When Ironclad Revolutionary enters, you may sacrifice an artifact. If you do, put two +1/+1 counters on Ironclad Revolutionary and each opponent loses 2 life.
Whenever a nontoken artifact is put into your graveyard from the battlefield, return that card to your hand unless target opponent has Pia's Revolution deal 3 damage to them.
Double strikeRevolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, put a +1/+1 counter on Solemn Recruit.
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.
