Quote Originally Posted by ZenBear View Post
Divine casters excluded, you still need a free hand for material components. An Eldritch Knight can't cast Fireball without an arcane focus, meaning they can't dual wield, 2-hand or s&b without sacrificing spell options, which are limited enough already. War Caster solves the somatic comp problem only, so Burning Hands and the like are available. Still, WC isn't the cure-all some make it out to be.
They can use a 2 handed weapon just fine. Sure, they need to let go of the weapon with one hand to cast the spell, but since they're only doing one or the other anyways that's not a big deal.