Questions about Mistform

[Stormbinder]

How exactly can it be broken?

I've heard many conflicting opinions on it,

1. Some say that it is automatically broken by hit that deal more than 30 hp of damage, after taking target''s protection into consideration. (if it is true, do muliply attacks by the same attacker counts as one hit?_

2. Explanation is similar to the 1st but it says that mistform is broken with net damage (from all attakers) that target would suffer if not for mistform >30.

3. Some say it is all true, but also the mistform can be broken by any magic weapons. If it is true, is it automatic or only possible?

Alsoif target has other forms of protection (ehterial, luck, long weapon for repel attmepts, mittor image) what is the order in which these protections are applied? Does mistform check comes Last, if all other forms of protection fail? Also what about mirror image check, what are conditions are for its dispell?


And fianlly - if the Mistform is broken does it still protects it's user against the final hit that broke it?

Thanks,
Stormbinder