Wyrmlad is more of a jack of all trades, master of none guy. Well he's master at pretty much everything except for attacking.
LazarBeam is actually a pretty dangerous contender for Ugluk's title, but, unranked, Ugluk manages to dish out slightly more damage. The second LazarBeam hits rank 1 however, you should swap over to LazarBeam.
Zunobia isn't great at dealing damage. I don't need to explain this.