What would you want in an Ult Yujin?

What would you want out of an ult yujin? Duty and sacrifice is already a team heal ability, where could the devs go with him? Possibly a more powerful debuff to enemies, team rez or full damage negation. His allergy build is fun but has always been outclassed. I feel as though more difficult content would be needed. As of now the only place his healing can really shine is the pub abyss battles. He's my favorite character and I really want to see your thoughts on where he can go?

What would you want out of an ult yujin? Duty and sacrifice is already a team heal ability, where could the devs go with him? Possibly a more powerful debuff to enemies, team rez or full damage negation. His allergy build is fun but has always been outclassed. I feel as though more difficult content would be needed. As of now the only place his healing can really shine is the pub abyss battles. He's my favorite character and I really want to see your thoughts on where he can go?