Improved Spell Sharing and spells with "or until discharged" durations

[Ian Johnstone]

Hi,

If I am a level 4 hunter, and I share Protection from Energy [Fire] with my companion via Improved Spell Sharing, we both have fire immunity for 20 minutes or until discharged.

The "until discharged" clause is causing a hurdle.

Feat link here

Do we:
A) both get to absorb 48 [12 per level times 4 levels], and both get it for 48 points or 20 minutes
B) combine our absorbed amounts until it totals 48, and both get it until we take a combined 48 points or 20 minutes
C) get to absorb until one of absorbs 48, then both lose protection, and both get it until one of us takes 48 points or 20 minutes
D) not get to do it at all because it could potentially have a duration of less than 1 round, making it an illegal option for the feat, and neither of us get it

The (a) result assumes the spell functionally becomes a localized communal version, giving both creatures distinct spell effects, now independent of the other.

The (b) version assumes the spell is the initial form of the spell, just with 2 potential sources of consumption.

The (c) version is both get full effect until the spell is discharged, at which point it ends for both.

The (d) version looks at what happens if the enemy hits you with 2 fireballs in the next initiative order, meaning the spell's duration is less than 2 rounds, making it non-legal to share.

Thanks for your input.

*edits for grammar and clarity and link to feat*

[Andy Brown]

Pretty sure it's either (a) or (d), but it's going to be GM call without some sort of clarification

[Wayne Bradbury]

My position is A. Nothing in the feat says you split up the effect or that both end if one does, it just says you both get that spell for half the duration each.

As far as D goes, technically the moment you share it the minimum possible duration is 1 round each. But even then, I don't think the "or until discharged" would have any bearing at all.