I find simplicity works best. If you need fancy tricks then get creative. If your target is rolling through your fireballs then aim to catch him in the blast radius by aiming for that wall he's next to. If he keeps trying to rush you down then preempt him with a GC or fire whip. Use the mists as field control and herding tools so he'll step in the way of a fireball.
I only use GC, GCF, GFB, and tempest, all stacked (except GCF) because that's all I need. Seriously. Just get creative.
I only use GC, GCF, GFB, and tempest, all stacked (except GCF) because that's all I need. Seriously. Just get creative.