I understand how the spell damage mechanics work well.
But it seems that even though there are many advantages to have a slow weapon as a wizard (since you spend less arcane power per hit and can benefit from 1 time hits), I would like to know if the following is an advantage towards the high attack speed side:
Having a spellbook gives a flat increase of (i.e.) +3-5 damage. Does this increase the range of your primary damage to +3-5?
If so, then since this isn't a percent increase, have a high attack speed benefits from such items, isn't it so?
Considering the alternative, I have a shield that could provide 20 intelligence, which translates to 20% more damage by spells.
If my current damage totals to 20 DPS, with 10-30 damage at attack speed 1 per second, then the shield yields 12-36 damage, hence 24 DPS.
Using the spellbook instead of the shield would yield 13-35 damage, hence again 24 DPS.
But if I had attack speed 2 per second, and damage to be 5 - 15 (giving again 20 DPS), my shield would give 6 - 18 damage, thus 12 DPS, but the spellbook would give 8 - 20, hence 14 DPS.
Is this correct or am I missing anything?
As per the video below, it's clear that the flat damage increase can benefit in larger DPS when applied to a high attack speed, making it a valuable option instead of a 2H weapon.