mercenary choices hello. so i've been reading up on mercs for a sorc and most guides say holy freeze is the best because it slows monsters down. however, ive also read somewhere that if you get a prayer merc, and put the insight runeword on him, then u'll never need health or mana potions anymore. which is better? are there any other good alternatives i havnt heard about? also, with insight, the merc doesnt get any life leech...is it worth having to use those potions on ur merc just for the insight polearm?