Yes, the number is too high. Pity about that, my games after 0.20 was released had very few acid dragons, so I just assumed the number had been lowered compared to mottled dragon; I still have to find the acid scales.
I guess I can propose some sort of "wizard dragon" that can be very rarely found all across the game, like, on a mean of 0.5 per game, below D:9. This would mean finding the scales on 1/3 of games. It's all very nebulous, though.
Lavandula wrote:Why wear other scales, then?
Well, it depends on many things. People who want higher AC may want fire scales. People who want higher AC may also go Ozu + many other things. But there is no certainty of finding Ozu before this, or this before Ozu. Generally, however, I was under the false assumption that it would have been reasonably rare.
Archmagi is useless for some spell very loved by hybrids, however: blink is the best example (especially interesting for ogres and trolls, whose armour choice is limited). Even for main casters, there also is the matter of capped spell power and the availability of other enhancers.
More experienced players will give a more balanced judgement about this, however. My assumption was that it would have been in the eveningstar orbit: very useful, but also rare enough that it would not eclipse other options in most games.