My L28 wolf vs. Gresl-glis from EE Don't Drink the Water with no assistance from me except buffs.
Wolf gear:
Shadow Dragonscale heavy armor slotted with PRR 16 and Resistance +8
Thunderforged Collar with T1 Touch of Flames, T2 Paralyzing Fear, T3 Mortal Fear, slotted with Meteoric Star Ruby, Ruby of Good and Constitution +8.
Gear, stats and buffs shown at the end of the video. Wolf starts with a 90 second Haste.