Strategy from Wargasm on the forums:
Krussh do this last week. Krussh mighty Orc with Bear Mace. Krussh send enemies crashing into walls and each other. Very funny. Krussh make sure to bring lots of juice with him. Tastes like horse piss, and that make Krussh angry. When Krussh angry, Krussh very fast and strong. Sometimes after drinking juice, Krussh run around in darkness and feel better before hitting things. Krussh make sure to kill things bigger than him when he can. More glory. Krussh not bother with puny "lehvulwans" unless he accidentally swat them in passing. Waste of Krussh's time unless Krussh so big and angry he can eat them like popcorn. Krussh make sure he save some juice for big bossy monster at end. Krussh have friend Smassh who also good at this, he be a Dwarf.
Other strategy considerations
This quest gets a lot easier if the Warlord Silver challenge is completed first, because then the Trisword might appear in the store. It's probably the best item you can ever get for this challenge, since the 10 potions of Courage Juice will power it up without having to pick a potion creating race.
Also, consider converting the Wall Crunchers provided at the start instead of using them.