I've considered having Time mage as an offensive class (though most of the abilities I thought of are actually space, but it's time/space in JP) with Comet being a low damage spell, demi being a spell that does more damage when the enemy has more of it's health (though not actually percent based, you could kill something with it if you felt like it) X-Zone being a DoT (not actually warping them out but trying to and exposing them to the capital V Void).