First, we have two potential win conditions in 004-138 and 004-190, alongside 004-183 to help with the challenge
Once Gardevoir is active, it starts pumping energy onto benched Pokemon at a rate that would normally require several turns of manual attachment
So you're up against that, first you play Hex Maniac, and then you play Lugia-EX with Double-Colorless Energy, and you use the Lugia-EX to knock out the Keldeo-EX
A Whispering Madness As the Dimir player with a lot of expensive spells, its going to be tough to be on the right side of this
Ace Spec cards are special, as you can only have one such card in your deck
The concept art comes from illustrator Vincent Proce, and is just a part of a much bigger piece, which depicts Ulamog in its early tentacle glory