making magic darts more powerful

ive noticed that, magic dart (50 magic 55 slay) is highly underpowered, and it is quite an affective weapon against many bosses\barrows.
max hit =
it should be like this
max hit is ur mage lvls first digit + 10.

50 mage = 15

60 mage = 16

70 mage = 17

80 mage = 18

90 mage = 19

100 mage = 20 etc (potions\drinks)

e.g my acc : 87 magic: 8+10= so 18.

I know that your busy on the event atm, just reporting this just cos ahhh, it would be very nice if it could be changed