This is the deck that I use at locals when I play Subterror.
The main stars are obviously Guru and Dragoon. But the unconventional spice is Shadow-Imprisoning Mirror, Reaper Cherries, and Dimensional Shifter in the main.
While Shadow-Imprisoning Mirror turns off Dragoon, you really don't care if you are shutting off an entire deck. And Dimensional Shifter does hit Fiendess hard. But if you have that turn skip you don't really care.
Cherries hits the Mirrorjade, the Dragoon, Kitkallos, and Spright Elf, some of the BIGGEST problems you would face with the deck.
In the extra deck you run the common threats for Cherries. You also run the Super Polymerization targets.
This deck does run Extravagance. You can run Prosperity. I opt for Extrav for the simple fact you are running 3 Dragoons and most times you will still always have 1 left after your banish. And getting the extra card is sometimes nice for Dragoon discards. Which is what you would use your leftover D. Shifters, Cherries, and Fusions for. And Prosperity only gets you the 1 for 1.
Imperial Iron Wall is in the side for Runick and Floowandereeze (While also have There Can Be Only One in the Main.) Soul Drain for more Tear hate since we don't use our graves too much. With Super Polys for the generic fusion targets.