Guild Wars 2

I think the burning is for more of a might stacking build, since the might would increase the burning and the direct damage you do, so you run might duration runes and get dhuumfire, or just pure power build and get close to death.

Dhuumfire would be good for a might stacking build with life blast, 30/10/0/0/30, even with no condition damage the burning will tick for over 700 with 22+ stacks of might which is very easy to keep up already, even more so with the spectral skills working with death shroud, although the 20% axe and 20% below 50% would still be nice with lift blast hitting for 40% more, both would be great, but it hink dhuumfire would win in the end, with a might build.

Remember that Axe training increases the damage of Life Blast if you have axe equipped when you go into Death Shroud. meaning Life Blast will hit for 20% more.