Bleeding Cool has noted of late the increase in demand of late for trading cards of all varieties, sports, Pokemon, Magic, and Marvel Superheroes trading card boxes going for thousands on eBay
Not sure its worth it with creatures, and Im not sure Squandered Resources is the best thing to be doing outside of janky combos unless you can get lands out of the graveyard
The best use for this card is when you have land recursion available, be it Splendid Reclamation or Crucible of Worlds
Nightmare Aura makes it so that whenever you attach a darkness energy to Darkrai ex, it will do 20 damage to the opponents active Pokmon
Compare that to the mood of Cloudbound Causeway above, which uses cool colors and softer shades to achieve a much calmer atmosphere for a calmer card
It's pretty hard to build PowerMonolith in a cube with only one Power Artifact and one Basalt Monolith