Mage bonus DOES effect slayer dart. lol, no it doesnt Talk about things you know somthing about, alright ? I have casted over 100K slayer darts so i think I do know what i'm talking about... lol, ive done quite a few dks/barrows in my time, and no mage bonus doesnt effect the amount of damage you do, why ppl have like -mage bonus and still hit 19's?