Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Flying
At the beginning of your end step, each opponent discards a card.
{1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.
First strike Whenever Reckless Racer becomes tapped, you may discard a card. If you do, draw a card.
{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate this ability only if you control an artifact.
{R}, Sacrifice Implement of Combustion: It deals 1 damage to target player or planeswalker. When Implement of Combustion is put into a graveyard fr...
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{W}, Sacrifice Implement of Improvement: You gain 2 life. When Implement of Improvement is put into a graveyard from the battlefield, draw a card.
Trample Whenever 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:...
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