As for the nonartifact spells, we have a couple of ways to give our spells improvise and thereby tap all of our Equipment to cast something
The former taps for colorless, can be sacrificed with two mana in order to draw one if you control an artifact or enchantment, and then two if you control both
players, is designed for convenience
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This is mostly just a solid Drag Under variant, with the bonus of hitting vehicles
Being able to deal combat damage to a player is a lot harder than it seems