Slayer Dart

Magic Dart (also referred to as Slayer Dart in the Game Guide) requires 50 Magic and 55 Slayer to cast; in addition, a slayer staff or staff of light must be equipped to cast it. When using the Staff of Light, there is a small chance that this spell will be completely free, costing no runes at all. Magic Dart's maximum hit is determined by the Magic level of the caster, and is equal to 100 + Magic level. The minimum maximum hit of Magic Dart is therefore 150, with a possible maximum of 200 at level 99 Magic while operating a Magic skillcape.