HOLY. SHIT. Mad props to you for actually coming up with a viable way to use sop in a non-water deck. And also, fantastic idea with the devourers, I may have to "burrow" that.
So since we already have a mitopests and a pest/warden duo... why not fractal pests? This is what I came up with:
Hover over cards for details, click for permalink
6rv 6rv 6rv 6rv 6rv 6rv 7t4 7t4 7t6 7t6 7t6 7t6 7t6 7t6 7ta 7ta 7th 7th 7um 7um 808 808 808 80i 80i 80i 81q 81q 81q 81q 8pm
It doesn't have any cc, but theres extra earth quanta, so if you want you could really include some of the wardens, if not, use all that darkness quanta for siphon life.
Against which AI would you use this deck?
I'm looking for an Arena grinder and want to somehow use pests.
I'd personally remove 2 SoP for Vampires and the Nightmares for Wardens. This way you can choose between 3 creatures to Fractal.
The eclipse may be changed for maybe Dusk Mantle? Also I might change a Pest for a Dark Pend since 4 seems too less to me.