[Fantomen]

Also, the bonus is not applied to natural regeneration. So for example a ***** queen with N6 will need to cast PR to get her bonus, but when she casts it she will end up with a very high relative regen for her HP.

One possible use for this is to make "rainbow thugs" like the ***** queen and Freak lord viable. If you take relatively high Nature on them with some air you can turn them into a viable thug on the fly. For example the Freak lord with N6 gets 10 regen in neutral dominion. Also an argument to take Nature on a Vampire queen.

Strategically I'm not sure what the point is, I suppose they would site search mostly but be a viable backup thug in emergencies. Probably rarely worth it anyhow.

One more thing about the green dragon, which I find quite significant. It's mage form is stealthy, so it can sneak away from assassination spells into a neighboring province, then change shape and attack again, than sneak away etc. The carrion dragon has the same advantage too.