I'm a little confused on the mechanics of passing ...
During the draw phase, the rule book says,
"Once all cards have been placed and before they are revealed, you may state that you choose to pass. Put your cards back into your hand. If you passed, gain 2 EP."
That makes enough sense.
One confusing bit appears later in the aftermath phase, where the rule book states:
"If you played an element spell with an FX that targets Self and your target chooses to pass or is immune, you will still gain the FX that apply to Self."
This wording seems to imply that spells don't affect a target who has passed - but this is not explicitly stated anywhere else in the rule book - am I interpreting this correctly?
It shouldn't refer to passing, just immune. I've made a note of this so thanks for bringing it up.
Passing does not make you immune to spell FX.