Oldtrees, might I point out that upped oty, which, under the current standard should have a cost of 3 or 4 , has a cost of 5 instead? Not all cards need to obey the standard if doing so would make said card OP or UP. I agree that toadfish needs neither a buff nor a nerf (even if I would like to see its upped version, pufferfish, lose a hit point )
Otyugh has the skill Devour.
Devour is not a statically valued skill but rather is dependent on what percentage of creatures it can consume and any accelerated HP growth (swarm)
So far about 10% of creatures do not obey the standard. Many of those are either agreed upon as UP (Graviton Mercenary, Graviton Guard, Massive Dragon) or agreed upon as OP (Graboid, Elite Graboid).
However I do not expect my version of the standard to be complete which is why I am going to submit it for discussion in the Design Theory forum within a month.