Ok...
everything I said about giant ice worms was based on incorrect data... I went to UOGuide.com to get the stats of a giant ice worm... whoever entered the data on that particular page doesn't seem to understand what base damage is... so I calculated dmg range using the base dmg number they had there...
I guess it should have occurred to me that something was off when a 1 slotter had the same max base dmg as an ancient wyrm, but anyway.
GIW have 7-17 base dmg, which is close to the same as a predator hellcat. I think the poison and cold resist and hp on on GIW help them out a lot, though. They're still definitely the best 1 slotter in some situations, but they aren't even close to as powerful as I was led to believe by that incorrect data lol
btw... hell hounds and frenzies have a base dmg of 11-17, so they actually hit harder than GIW and have pack instinct.
I decided I'd run 2x bake + GIW against targets that are vulnerable to cold and poison and I'll run the 5x hellhound pack against targets that are vulnerable to fire.
I SOOO wish they were really 15-35 base dmg