Just out of curiosity - do you consider Naga lategame in line with other tribes? (in other words: Do you consider Nagas balanced to other tribes?)
naga are terrible at lower levels, late game is where they shine, with alot of permanent stat buffs whenever you use a spellcraft. But if you do not get the tier 6 or 4 buffing ones then you might as well concede because other minion types are far more likely to outgrow them