From memory Shadowspear was around five USD the first few weeks after THB released Because of its relevance in the Theros story arc, I think were mainly going to see it getting reprinted in supplemental sets or universes beyond sets because reprinting it in Amonkhet or Lorwyn would make little sense
But the inclusion of a small collector portfolio elevates the pack for me, as does the little booklet laying out exactly how this all works
Ideally, I'd want to play this character when my hand is almost empty, shifting it on top of another genie for five
Examples include Risen Reef, Mulldrifter, and Grief
Its a classic control type deck that operates hit-and-run tactics earlier on, then when its set up later can be hard to stop
While at first some players (myself included) speculated that wiping the board of both yours and your opponents characters might not actually be all that advantageous, because Ruby has so much card removal it usually works out in your favor to hit a Be Prepared