it's better to sit on a stool.
...as far as I know, drones can never be workers – they are responsible for fertilizing the queen:), so it would be better to change the name to something more plausible.
the second level has a root ability that lasts for 10 turns – that's too overpowered.
the third level is exactly like a minotaur; it's immediately obvious. Also, the lack of a retaliatory attack is much better than a 10% damage return.
instead of "psion," it would be better to use "psychic," because of the associations:) and besides, if the fifth level is psychic, and the alternate upgrade is physical damage, then it doesn't make sense.
the seventh level – it's impossible to implement precognition within the framework of the fifth level, unless it's done in a terribly scripted way...
also, "zhi-shi" is spelled with an "I":) I'm talking about the alternate upgrade.
overall, the idea is quite interesting. I hope this criticism will be taken as constructive.