Solmyr, Demeer, and Aislin are cheaters (and/or) kamikazes; do the rest have a right to exist?

But if Solmyr is really that awesome, then let's allow it.
All that will change is the balance of factions. Necropolis and Fortress were in first place, and now Tower will join them.
It will be more interesting to play and experiment.

IMHO
Dungeon has the most powerful start;
Necropolis is scary because of its constant increase in strength;
Fortress has speed and an increase in strength in bursts, every week;
Rampart is the most balanced castle for all scenarios and templates;
Tower - ???