Using staffs and rods as magus

[Baumfluch]

Hi,

im building a Magus atm and i've got a question about using wands and rods.
So i read some guides and many of them go for Dervish Dance build, wielding a scimitar in the one Hand. (no discussion about the possibility of using DD as Magus while using spell combat).

so if i go for that build and decide to use a wand or rod, i obviously need to put it in my offhand.

therefore none of my hands is free anymore, assuming i have only 2 hands.

If i pick the "wand wielder" arcanum, im able to cast from my wand while doing spell combat.
But i shouldn't be able to cast my prepared magus spells anymore, since i have no hand free for somatic component, should i?

I only found the way of using the "still spell" metamagic feat. but that would cost 1 hiher spellslot.
also it would deny using other metamagic feats such as maximize spell, even if i have "maximized Magic" as arcanum.
And i can't combine it with a metamagic rod, since i have no more Hand free to carry the rod.

One thing i heard is, that you can perform the somatic component with a Hand that holds a metamagic rod, but i couldn't find anything in the rules, and it would still not help me using wands.

did i missunderstand something, or is it just not possible to cast as Magus, wielding a weapon + wand/rod?

thx already and again sorry for upper and lower cases, i just can't turn off this autocorrect somehow.

[Cevah]

Metamagic rods modifying the S component was 3.X. I don't recall that in PF.

Use weaponwand to put the wand in the rod, or into a spiked buckler. Now you get a hand back.

/cevah

[Cap. Darling]

Spellcombat need you to have "one hand free (even if the spell being cast does not have somatic components)". Meta rods and tosse are generally a problem for magi. The hew Crafter can hold one with his mustache if he take the rigth hex.

[UnArcaneElection]

Or be a Tiefling with a prehensile tail (optionally also Grasping Tail, but it isn't strictly necessary). (Could also be a Kobold, but their ability score adjustments really hurt; in the future could be a Monkey Goblin, whose ability score adjustments are pretty good if you're going Dex, or a Kasatha, which has no tail, but has 4 arms.) Alternatively, you could invest in Alchemist and get one or two Vestigial Arms and/or a Tentacle, although this costs levels (normal multiclassing only, because VMC Alchemist doesn't give you access to Discoveries). If none of these apply to you, at higher levels you could use Monstrous Physique to get extra arms, although using a spell slot of level 3 - 6 (depending upon version) for this purpose is expensive, so you want to make sure you are getting the other benefits of it as well.

Edit: Oh, yeah, forgot about Hair Hex for Hexcrafter Magi, but using a Magus Arcana for this is expensive for just this, so as with casting Monstrous Physique, make sure you're also getting your money's worth in other respects.