When i got this game at its initial release, i was really pleasantly surprised: it was an hybrid game of RTS but not just that...
The whole concept was simple (capture key points on the battlefield) with whatever tools your character had at their disposal... but then, each map was also a giant puzzle on its own, because you had to figure out the best ways to conquer the key points despite cleverly deployed opposition and conditions.
Just add to that the fantastic soundtrack composed for this gam by AfroCelt Sound System band, and i was so immersed in my little battles for hours: trying out strategies, failing and learning from my failures, grasping whatever better strategies to use, watch all of my cute summoned creatures do their stuff.
I had so much fun for countless hours in early 2k's... I suppose what causes problem to get this gem on GOG would be the soundtrack licensing ? Otherwise it sure is not a hugely popular or well known title, more of a hidden gem in fact... But a good old game deserves to be protected and to become part of gaming legacy for the future...