[Suggestion] [Gameplay] - Improving Diplomacy Tech Tree
One of the best things I have found in the current version of Elemental is the Diplomacy techs that allow you to recruit fantastic creatures. To me this adds huge levels of depth to the game and a fantasy army looks best with many types of creatures within it. The current selection is interesting, but I think can be expanded to make it both deeper and more fun.
Rather than having one tech unlock one type of creature from a resource, I think new tech's should be available to unlock new kinds of units from your existing ally resources. This will force players to chose to upgrade the ally resources you have, or to try and find new ones. The more advanced units would be unlocked by correspondingly higher level techs. This will allow the Diplomacy tree to get deeper and closer to the idea of "infinite research", give it a much better strategic viability versus the other tech trees, is relatively cheap to implement, and will contribute to armies not all being clones of the same units.
Some examples:
Empire
Darkling: As exists (Green)
Darkling Witchdoctors: Gives every unit in the army +1 heath regeneration. (Yellow)
Darkling Shamans: Gives every unit in the army +1 mana regen. (Red)
Spitting Umberdroths: Has a short ranged poison attack (Yellow again)
Umberdroth Alpha: Much faster / stronger / tougher (Red, max of 1 in a unit)
Kingdoms
Spiders: Black Widow (same)
Web Spinners: Less powerful, has ability to stun enemies for 2 turns (Yellow)
Huntsman spiders: Can leap 4 spaces once per battle, stronger, high poison attack. (Red)
Anyone else have ideas on unit types for the existing allies? Other types of allies you would like to see be available?