Considering the HK-47 rework already has 2 zeta's, this is never happening. Cause then he would have 3 zeta's and thus be on par with journey characters. I do like the overall idea however. Thou an omega will more than suffice. Also why are you adding the cooldown reduction into this kit. as well as the health recovery (which really isn't that strong by the way). Some droids have those already naturally (chopper, c3po en bb8 of the top of my hat).
Instead I propose: "Whenever any unit is defeated, all Droid allies recover 20% Protection and Turn Meter".
Much more simple. And no zeta needed.
