invisibility purge/hag/invisibility

[Willtell]

a cleric casts invisibility purge and overcomes a hags spell resistance, the hag then becomes visible for the rest of that round. Next rnd the hag tries to become invisibile again.

- does the hag, still within the invisibility purge area automatically become invisibile?

- does the cleric need to make another roll to overcome the hags spell resistance?

 

[tleilaxu]

once you beat spell resistance with a particular spell and a particular creature then is is beaten.

 

[Iku Rex]

a cleric casts invisibility purge and overcomes a hags spell resistance,

As far as I can see there is no reason why the hag's SR should be involved at all.


But SR was involved, I'd say the roll was to find out if the hag was affected by that casting of the Invisibility Purge. Once affected, it won't matter if it casts a second Invisibility spell.