Without the physical rune the numbers on display droped all the way to 80-96. (46-55 weapon damage +50% from intelect +15% from pyro).
Edit:after doing some tests hiting my Sebile who has 23% fire resist
I tryed hiting Sebile with my physical rune enhanced staff so I can check the damage and after a couple of hits I dealt 62 to 74 damage per auto attack with 1 crit of 114 and between 12 to 23 physical damage. I think we can get similar results if we combine magic elemental runes.
Sadly I have yet to come accross any wand with rune slots,but I can confirm that as of 12.10.2017 elemental arrowhead still works with double wand equiped,so if you want to make a double elemental mage,gear with +huntsman is a must have as it grants access to height damage bonus,elemental arrowhead and tactical retreat.
Staff of magus seems to be a good indication of what rune enhanced staves's auto attacks are likely to look like.
5. No Weapon skill line affects staff or spell damage. Whereas a Ranger can go 10 Warfare / 10 Ranged, or a Rogue can go 10 Warfare / 10 Scoundrel, or a Warrior can go 10 Warfare / 10 Two-Handed, etc., each getting more damage out of every point towards every skill they have, a magic user has only the 10 points in single magic skill tree for a single set of skills.
Staff counts as two handed weapons,single wand counts as one handed and dual wand counts as dual wielding.
Rayner,please double check your facts before you post something not true again.
I will also give you a free tip,you can cast elemental arrowheads with double wand equiped,so in theory you could set up some nasty combos regardless of the kind of wands you get,just as long as you can create a surfaces that matches your highest elemental school.