A subgroup may work (sorry if this topic has been dealt with).
In theory, is this the same issue as when low level mobs from somewhere (say Going Rogue Praetoria) get 'the treatment' by the devs and expand into the higher level mob-space?
I am not a huge fan of the subgroup system used on the Arachnos and Council pages, as spawns have mixes of all the subgroups, making it harder for me to track them down if I was looking. It works, however clunkily, and is neat, however. So no huge objection.
Given there is a difference in powers attributed to the two versions of the tsoo with same names; I'd like to see the Tsoo clearly labelled that they are the high level (or lo level) Tsoo, so no matter how they are found in the wiki, it's clear which is which? (i.e. by searching, which does not always bring up a parent page).
This label for any duplicated mob name, should be part of the description for that mob, perhaps. A simple template thing or a standard bit for each?
For example, Tsoo Classic 'Dragon Blue Ink Man', for example, has thunder Kick and Siphon speed, Dragon Blue Ink Man' Mk II does not.
(aside: The new Tsoo are equally as misogynistic as the old ("masters of using an opponent's strengths against him"). Was hoping the devs would stop doing that.)