[HoneyBadger]

Since Jurri mentioned the Polypal Mother, and her lack of individual usefulness, possibly consider that she spawn a third type of Aboleth-aside from standard and gibodai. A couple of extra hero-mothers could similarly spawn the third kind, which could perhaps open up another strategy for Aboleth-kind. Maybe the ones that the Mother spawns are sacred-opening up bless-strategy for Aboleths. Maybe a hero type spawns amphibious spawn while another hero type spawns that have a small amount of poison damage (like 1 point of weak poison) and then explode like a much-reduced-in-power-Medallion-of-Vengeance-except-poison-instead-of-fire effect (say area effect weakest poison). I could see lots of hero-mother possibilities here that could really open Aboleth up, and since they're each the result of a unique hero, they can be more fun without having to totally take a bow to balancing.

Also, I'm sorry to see Sedna didn't make the cut, was she just too powerful?