The Focused Attacks rune is literally the worst helm rune for rogues, no one will ever use it.
It surprised me that it’s even added as a rune.
2 energy on crit is like nothing. According to the sims it’s a 107 DPS loss compared to the Combat Potency rune.
Either replace this rune with a more useful rune or just make it to a passive ability (a spell book) instead of a rune.