The character gains temporary, intuitive insight into the
immediate future during the character's next attack. The
character's next single attack roll (within the duration of the
spell) gains a +20 insight bonus. Additionally, the character is
not affected by the miss chance that applies to attacks against a
concealed target.
Ki Ryn said:Ah, but the reason that sneak attack only applies to the first bolt is because the whole volley is considered as a single attack (but a single attack that requires multiple rolls). So I figured if it's one attack, then True Strike applies to the whole thing (like it does for Cleaves). Anyway, the spell description says both things, so it could probably go either way: