Some feedback on current version:
-needs tweaks in terms of difficulty, its an easy win if you get a corner start and impossible if you are in the middle.
-the ressource generator building should be brought back since spamming expansive Hives for income gets laggy because of drones ( or consider making spawning toggleable by clicking on buildings ).
-building and units should regenerate health over time / make drones sacrifice themselves to heal buildings.
-the tentacle spell needs to have a health bar.
-Consider making the spells to attract your units integrated into the mouse click ( for example holding down the left click somewhere makes the two options appear and you can just flick the mouse towards what you want and it automatically puts it down on the spot without a cost but with a cooldown ).
-Add buildable walls to help funnel enemies ( make it very low on enemy target priority and you'll have a use for siege enemies that will come later on in developement ).
-Make the creep spread / corrupt the water and mountains + add a more detailed creep texture to differenciate better from the uniform color from enemy influence zones.
-update the screenshots on this page since you removed the skill tree.
Otherwise nice work on the enemy art.