Double strike, haste
Whenever Lightning Runner attacks, you get (two energy counters), then you may pay . If you pay, untap all creatures you control, and after this phase, there is an additional combat phase.
Trample
When Maulfist Revolutionary enters the battlefield or dies, for each kind of counter on target permanent or player, give that permanent or player another counter of that kind.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
When Maverick Thopterist enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.
Enchant artifact you control
At the beginning of your upkeep, create a token that's a copy of enchanted artifact. Then if you control eight or more artifacts with the same name as one another, you win the game.
"Give me eight walkers, I'll give you the city."
—Dovin Baan
, , Tap X untapped artifacts you control: Look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
"If you can build it, we can move it."
—Bes Tavani, Bomat merchant
As Metallic Mimic enters the battlefield, choose a creature type.
Metallic Mimic is the chosen type in addition to its other types.
Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Counter target spell unless its controller pays .
"Too little, too late. The machine is in motion."
—Tezzeret
Whenever Mobile Garrison attacks, untap another target artifact or creature you control.
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.)
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.