Demonic Servants created with Submerge count for the effect of Riss and Abraxal but doesn't add to the count of Demonic Servants used by other cards like:
, and

I don't know if cards like: , or see them as Demonic Servants but I think don't either.

And Riss (old Version) still just get +0/+1 instead of +1 Attack as the new Version.

Ps: I tired to use this deck in Quilingo and now m score got so low that I somehow don't want to play right now so for a screenshot of the Bug we have to wait.