I suspect darkness would take a darkness/death CC deck, maybe something along the lines of Incarnate, against us. I think life/air with shockwaves or life/water with thorn carapace are our good counters, and seeing as life/water is being used elsewhere, life/air is our duo.
Go FFQ deck with shockwaves which can take out devourers if they play them. The only thing we have to worry about it liquid shadow... somehow, and I doubt they'd take that against us.