What does "luck" actually do?

[Klorox]

I read all about luck in the game, but have no idea what it actually does.

TIA

[Dedigan]

I'll give you the simple version.

Luck from a spell, bard song or item gives you +1 to every die roll in the game. So saving throws are improved, to-hit rolls are improved and whatever else die rolls attributed to the lucky character are improved. Luck is cumulative for different sources, so a character affected by the bard's song as well as the spell get +2 to every roll.

It's a very very useful thing to have.

[Jelaweb]

That is not totally true...

TEST - Two Tymora's Loop rings (+3 luck each = +6 luck total) on a character wielding a short sword. The sword will ALWAYS do 6 damage (on a d6 roll).
However, if the sword does "an extra" +1d6 fire damage, for example, luck will NOT cause 6 fire damage. It remains 1-6.

It is the same as critical hits - the "extra" damage won't get multiplied.

[Claudius]

I also tried a spellcaster with fireball and luck and after some tests concluded luck wasn't making the fireballs more powerful. Not scientifically done just seemed the median wasn't moved up one.

claudius