Welcome!
We still need a fifth person in any case but I plan on leaving recruitment open for a few more days. These experimental games don't have a large audience and some people may only check the forums occasionally.
Btw, the game is no diplo but discussion on the summons and settings during the game is ok. So feel free to say the fire dragon is a waste of gems and nobody would summon one instead of getting a zmey.
Though in the dragon's defense it is the only summon that guarantees you fire access - hidden in sand and monstrums have a chance but no guarantee. The frost and forest dragons I'm not as certain about (especially because there's a lot of other good uses for those gem types, especially N). I suppose forest has a niche in fighting C'tis if nothing else but I'm not sure being amphibious is enough of a selling point on the frost dragon (and unlike fire there's other summons with guaranteed W access).