Instant and sorcery spells you cast cost {1} less to cast.

Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

Enchant creature

When Castaway's Despair enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

At end of combat, if Daredevil Dragster attacked or blocked this combat, put a velocity counter on it. Then if it has two or more velocity counters on it, sacrifice it and draw two cards.

Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

As an additional cost to cast this spell, return a permanent you control to its owner's hand.

Counter target spell.

{R}, Sacrifice Implement of Combustion: It deals 1 damage to target player or planeswalker.

When Implement of Combustion is put into a graveyard from the battlefield, draw a card.

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 {1}.)

Flying, indestructible

Kefnet the Mindful can't attack or block unless you have seven or more cards in hand.

{3}{U}: Draw a card, then you may return a land you control to its owner's hand.

This spell costs {1} less to cast if you control a Pirate.

Counter target spell unless its controller pays {4}.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

When Maverick Thopterist enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)

Counter target spell unless its controller pays {3}.

Whenever you cast a historic spell, you may pay {1}. If you do, create a token that's a copy of Mishra's Self-Replicator. (Artifacts, legendaries, and Sagas are historic.)

When Navigator's Compass enters the battlefield, you gain 3 life.

{T}: Until end of turn, target land you control becomes the basic land type of your choice in addition to its other types.

Flash

Flying

Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)

When you cycle Nimble Obstructionist, counter target activated or triggered ability you don't control.

Refuse deals damage to target spell's controller equal to that spell's mana value.

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Aftermath (Cast this spell only from your graveyard. Then exile it.)

Copy target instant or sorcery spell. You may choose new targets for the copy.

+1: Scry 1. Saheeli Rai deals 1 damage to each opponent.

-2: Create a token that's a copy of target artifact or creature you control, except it's an artifact in addition to its other types. That token gains haste. Exile it at the beginning of the next end step.

-7: Search your library for up to three artifact cards with different names, put them onto the battlefield, then shuffle.