Zelgius

He's a pretty strong red armor unit, so i'd say just keep him.
Not worth getting rid of him just for his A slot on Nowi imo
as long as he aint -Atk you should be all good

I think that Zelgius is great simply because he removes the disgusting movement weakness of armored units, and he works perfectly fine on a mixed team.

So if you dont already happen to have a good red armored unit I think you should keep him

Why would you want to folder off the strongest red unit in the entire game?