The type of ink that a card belongs to roughly determines what abilities or overall strategy it relates to
It's a somewhat demanding deck that will require you to plan your Challengers well and save valuable resources for the right moment, but it's also a fun deck that can be made much stronger very easily by swapping in a few more Evasive cards, like Genie, On the Job and Goofy, Daredevil
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Getting some copies of it going, or sacrificing it and returning it to play, will be a show stopping move
Urza's Command can drop the power of other player's dorks out of nowhere, make a Powerstone, make a tapped Construct token to win the game, and then scry and draw, so I think that the Construct and scry and card draw are the default here, and that's pretty good for four mana instant speed