Ok. Let's assume perfect play. You never lose your items. 36% haste from robe would change mob DPS from 11.7 to 15.9. A Warrior at perfect play is going to be in crippling blow range at all times. They can easily crippling blow for 200 at level 24. So if I add an average of an extra 100 damage to my parse, the killspeed on my parse would have improved by 7 seconds. So 671 over 38 seconds is 17.6 DPS. Again, I wasn't spell hasted, so both the pet and the Warrior would get the increase in DPS.
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