This deck is about switching your units' ATK and cost using Spire Shadows. This makes arcanum monitor, colony matron, lumen defender, waystone infuser, and, most importantly, robobuddy, into 1 or 2 cost 5+ ATK units. Then you play waker of ancients and they all have warp.
Everything else in the deck is draw and filtering to find spire shadows. If you have both waker and infuser out, you can warp through a ton of cards in a turn using filtering like plunder. The surprise kills come from warping robobuddies outta nowhere.