+1 for Zenga

Was my first thought aswell when I saw the topic title, from EJ:
When should I cast Unleash Elements, and what does it affect?
Unleash Flame, the Flametongue-based attack from Unleash Elements, does a nominal amount of damage and boosts the next Fire spell you cast by 30%. UE's single-target damage is pretty low right now, so it's generally not worth it to cast if you're standing still (or using Spiritwalker's Grace). Instead it can be used while moving to reduce the impact that movement has on our DPS (and without triggering a Shock cooldown).
http://elitistjerks.com/f79/t110309-...n_patch_4_1_a/