Warrior · Fury · tier 6 · from level 35 · needs Death Wish

Flurry

Rank 5/5

Increases your melee attack speed by 25% for your next 3 swings after dealing a melee critical strike.

Doesn't change the damage or healing of any Warrior spell.

Averages, counting crits and misses, for a level 60 Warrior 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.