I don't see this in any build guides, but I have great success with this skill. In addition to (or replacement of) Whirling Blades/Steel Tornado.
While this skill may not propel any DPS parses over the top, the great thing about it is that it allows you to maintain a high degree of front bar DPS, without having to stand in the fire! This is great during high mobility boss fights with adds. Also, it does not impede your movement speed like WB/ST. Whirling Blades allows to damage 3+ mobs, but they have to be stacked and this is less likely during boss fights.
While it doesn't have any execute funtionality, it can be spammed and gives Major Brutality (!) which is 20% damage increase. The only other source of this buff is from a DK Molten Weapons.
I have been using this skill for a long time and hesitate to remove it from my bar. I increasingly use it as my spammable in boss fights with adds.
What are your opinions on this skill? I never hear it mentioned or listed in build guides.