Ancient spells cost a lot. Aside from pvp of various sorts, and extreme examples of multi-combat (I hear pest control is good.) you won't really be using ancients to damage. I dunno why anyone would say barrows for cost reasons. Prayer potions are cheaper and safer than ice spells. For speed reasons, sure, you get Canifis tele. CW with them is fun. And horribly gp draining. Some people will tell you to pray and mage damis. And really, that's sort of the popular belief. However, I found his prayer draining to be too much. So, I went in with rune and meleed him. Shark eating was far more productive than trying to quaff potions and still be able to hit him. Also, beware Kamil. His environment may well kill you without super restores and good food.