What do you mean by a pack? There's nothing in the game's lore or story that indicates any lupines have a "pack" structure. They have families, they have tribes, and they have towns, but they don't form packs.
Just checked with a level 6 character, Ivris has no such option. However, Brother Sanders does. Which makes sense, because he's the White Mage teacher, and Cleansing Bell is a What Mage spell.
That said, why would you want to use it? With high spellpower at level 6, I can get Heal to heal 44% of health, and Great Heal heals 65% cures Burning, Bleeding, and Poisoned. Cleansing Bell removes all debuffs, but its heal amount seems to be a static 36% regardless of stats, which is less than what Great Heal heals at the minimum possible spellpower you can have at level 6 (50%), and only 3% more than what the normal Heal will heal at that level. And, CB has a 2 turn cooldown, whereas Heal and Great Heal are at-wills.
Cleansing debuffs can definitely be useful. As far as I know, the only other debuff cleanse comes from the Remedy item, and the Remedy power (which you can't have, but it's also an at-will for the enemy that does have it), but if you're using it for healing rather than the cleanse, you'd be better served by the healing powers.