@boeroer: on top about what you explained, having near a chanter that sings the phrase for +25% fire lash is another jump in power, since it affects both druid strikes ( togheter with the wildstrike) and avenging storm. Of course for such druid is better to go for fire wildstrike + scion of flame. If you cast also champion boon for the might boost you can crit for up to ~350 dmg while shifted.
Oh yeah right. I forgot that Avenging Storm will also get the burning lash. Neat.
When is Aefyllath Ues Mith Fyr better than Dragon Thrashed? If you have 3 or more big weapon damage dealers? Less? More?