I think the deck's potential lies in the White Landstill and general aggro matchups. The former gives fits to Dragon Stompy because it can often ignore Blood Moon and comfortably nullify the red zone; the latter because DS hates, hates, hates ground stalls, and Pit Dragon dies to both Bolts and black removal.

Garruk, CotH and Harmonize give Elf Stompy the ability to not run out of gas and keep churning out threats after each one is killed or traded with, whereas Dragon Stompy lives for Hellbent and Faerie Stompy has only Mulldrifter. Is this enough to compensate for the lack of evasion and bombs like Force of Will or Blood Moon? I don't know, but we're here to find out.