We all know Zane is seriously lacking in dps to the other vault hunters. I think making a skill available that buffs all damage done to a targeted mob from STNL ( also make same targeting available to Clone) would be great. Double damage of equipped weapon to any targeted mob. You would have to make this also visible to teammates. (It keeps the actions skills in play giving you a reason to use them. )
I want to like Zane, I have him at 50, but started with a Moze who is also at 50. I can sleepwalk through TVHM mayhem 3 with Moze, where at Normal, mayhem 1 with Zane, I feel guilty even joining a social proving ground as I am wet toilet paper if I get caught somewhere without the barrier up.
Moze can take an Anointed militant in about 3-4 magazines of a flakker, where its a 10 minute slog with anything Zane can bring to the table.