Oh wow, is this Merrin's first Will save ever? What an occasion!
Roll a DC 10 skill check in order to resist resisting and successfully fail, please!
...
And let's say that, uhhh...
Uhhh...
Merrin is a very skilled and famous Exception Handler, who has practiced under many arduous conditions and also never actually encountered any sort of Will-impinging magic in her whole life! Which grants her a base Will bonus of +3. And of course she has a WIS bonus of +4; Creation at least understands that part very well.
So, basically don't roll a 1 or 2?