5 - Cobalt Ring (any ring + sapphire [any quality] + thawing potion)
Same as above, but with cold resist. This recipe, however, is bugged in such a way that if the prefix "Triumphant" rolls (on a rare or magic), the cold resist will disappear, and be added to the Triumphant value. The result of this is a ring with 7-37 mana per kill, which is outrageous! Roll these with a level 8 character to also have the suffix "of the Apprentice" available, making for a possible 37MPK 10FCR ring; even better if it rolls rare! Possibly the most broken ring obtainable. Easy to get when rolling with a lvl 8 char, but it gets harder as more affixes are available. Still, when you have 4-5 of them, start using your highest level character for these, for a chance at higher affixes such as prismatic, str, dex, high mana or individual resists.