Not mine. . .
Saw it in Ra and was fairly surprised at how effective it was.
You can roll the combo as is or you do Shock > Falling > Thunder before finishing off the combo.
Thunderclap typically gets enemies to scatter making it easy to pull off horns when it would otherwise be impossible against a skilled team.
84-90 DPS during combo
30 DPS straight hitting
Probably not what you're looking for in the 8v8, but for Ta this works well with an interrupt ranger, DPS mesmer, and your choice of healer.