In light of temp/chirpa p3 aat. my suggestion is too overpowering. New proposal:
At the start of each ally character's turn Barris has an 55% chance to remove one debuff on the character. For each debuff removed this way restore 10% health to that character and Barris gains 15% turn meter. This effect is 20% more effective for Jedi Allies and works on all debuffs (not just one, and each debuff is a 55% success/fail roll)
In theory Sid will still suffer some debuffs but they won't last as long. He may get a little healing as well but under the current raid mechanic he's never seriously in danger until the tanks die. No one else will get a turn so the passive will only work on sid while he's got ultimate power.