Hunter · Marksmanship · tier 3 · from level 20
Improved Arcane Shot
Improved Arcane Shot
Rank 5/5
Reduces the cooldown of your Arcane Shot by 1.5 sec. Does not affect the cooldown of abilities which share a cooldown with Arcane Shot.
Doesn't change the damage or healing of any Hunter spell.
Averages, counting crits and misses, for a level 60 Hunter with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.