Frenzy

From wow.incgamers.com

Talent: Frenzy
Effect: Gives your pet a % chance to gain a 30% attack speed increase for 8 sec after dealing a critical strike.
Statistics: Rank 1 = 20%, Rank 2 = 40%, Rank 3 = 60%, Rank 4 = 80%, Rank 5 = 100%.