Oh, and something completely unrelated: Outside of Assasin Bronze, we don't have a troll Boss. For every other Monster sprite* exists at least one boss, but not for Trolls.
That's true, everyone else has a boss . Even the heroes
have a boss appearance thanks to Evolvia's little doppelganger shtick. To be fair, there is the Havensdale Bridge mini-boss, and the taxidermist is full as it is.
One of the main reasons that I think we don't see a mana regen boosting effect is that there's so little granularity to be had. Mana regen is 1/tile currently, so even one notch upwards doubles
your regen. That's just asking for trouble, and it's going to completely break Mystera and Binlor (for whom blackspace mana regeneration essentially converts into piety). If such an effect were introduced, it would require a pretty steep downside. At this stage, I'm not holding my breath.