you can just change
setCombatFormula(combat5, COMBAT_FORMULA_LEVELMAGIC, -1.7, 0, -3.9, 0)
for
setAttackFormula(combat, COMBAT_FORMULA_LEVELMAGIC, 5, 5, 5, 12)
and configure it
or want it easier?
go to xml/vocation.xml
and
replace all
magDamage="1.0" magHealingDamage="1.0"...