Since Spell Combat is like Two Weapon Fighting, I'd say that if you use all your natural attacks in a round where you use Spell Combat, all your natural attacks are treated as secondary (-5 penalty) - and you still need to keep a hand free for the spell, so you can't attack with that claw.
Granted, I'm sure if you only take one natural attack (the free claw) you don't take the secondary attack penalty.
I'm not sure that's fair even if it were accurate. It think the rules are pretty fuzzy on this. Although Spell Combat is like TWF, it clearly isn't. If it were, touch attacks would also suffer a -2 penalty to hit, which they don't.
I'd probably allow the Magus in question to use all his primary attacks at attack-2 as though they were weapon attacks.
It's important to note, though, that by RAW you can't even use spell combat with natural attacks. It says you have to be "wielding a light of one handed melee weapon..."
While i assume one claw is holding the weapon, and one claw is casting the touch spell (normal touch attacks), that the bite would follow the normal rules. Since the normal rules use the chart for two weapon fighting (as if the character had TWF), then the secondary attacks would follow that.
**-2 to Weapon, Spell, and Secondary (bite)
But the Arcane Pool use of Enchanting Held weapons makes the Spell Combat not supposed to use natural attacks. Also, with further review, i noticed alot of powers based off held weapons. The only thing that wasn't based off held weapons were the spells like Beast Shape on the spell list (where you can't hold weapons).
I hope that Round 4 or final version will clarify this problem.
Well, spell combat says you can "make all your attacks with your melee weapon". If your melee weapon is natural, you perform all attacks common to your full attack with natural weapons (which is all natural weapons, with one at fullbab and 1,5xSTRMOD and all others at fullbab-5 and 0,5xSTRMOD), making sure not to use a claw if it'd leave you without free hands.
Also remember that a full attack with both a crafted and natural weapons is "full weapon iteration + all natural weapons once each at -5 and 0,5xSTRMOD", so a magus with BAB 12, one bite and one claw could do "3 sword attacks, a claw attack and a bite attack" normally...and during spell combat "3 sword attacks and a bite attack" to leave the free hand.
Again, you actually can't use spell combat without a melee weapon in hand.Magus Playtest wrote:To use this ability, the magus must have one hand free, while wielding a light or one-handed melee weapon in the other hand.
It's RAW, but it doesn't make sense from a logical standpoint. For flavor's sake, take for instance a fighter that focuses on natural attacks as opposed to crafted weapons, or a sorcerer/magus with the abyssal or draconic bloodlines. Should natural attacks be inferred by the phrase "held weapon," or should the RAW be taken literally? This is definitely a rule point we'd like to see clarified.
Spell Combat seems pretty lopsided anyway; I'm looking for the thread addressing it specifically.