The mechanics of this would work just the same as the debuffs available to monks. No damage would be delivered just the debuff and yes monks can do the same with store bought debuff spells. Just replace psi with stamina. The entire proposed mechanic is based on the psi debuff. I presume the rare would have better range and rof than the store bought one.
I understand your point about the drones perfectly. However I feel that try were badly implemented due to broken mechanics.