Ruin Explorer
Legend
Improvised ranged touch attack. Provokes reflex save in target, on failure, blinded for one round and dazzled for 1d4 rounds. On success, dazzled for 1 round only. Some systems may have an explicitly built in 'Dirty Fighting' system, in which case this isn't even necessarily something you need to improvise - especially as, if is likely, the character has some sort of 'Improved Dirty Fighting' feat.
This seemed overgenerous until I realised you had to succeed at a ranged touch attack and they had to fail a save to get much of an effect, so it's actually pretty good. Unreliable enough that players won't obsess over it either.