From my tests(I am still testing everything) you cant, you can use the Ring of Hircine but only once before it no longer effects you.
Good stuff. I want the benefits of Necromage but without the vamp look. Interesting to see where this goes as far as the Vampire Lord, Ring of Hircine and how far we can take this. --- Testing: V/Necromage/Bend Will; Armor usable with Mage Armor and hidden +25 armor/pc; Augment Ring of Necromancy
"Also you might turn green. Not a cool green like... the Hulk, or whatever, but more like an olive that's been sitting in an unsealed jar for a few days" --- Look, for the last time: Kirby has explained it over and over! http://i279.photobucket.com/albums/kk138/Schesparn/11911255317531.gif