Is it simply a requirement to have Shart/ the party healer rock the Blood of Lathander? She got it on my first group playthrough, then my Pally/Bard got it, and now my Wiz/Cleric.

It doesn’t even give any kind of healer buffs (besides getting downed and healing nearby allies) and yet every time I get it it goes right to the nearest support character

Does that even count as light for that purpose? Like, I’ve got it on her, and next to her people still got the curse and still got disadvantage from darkness.

Like, is it a bug, or is the light aura just the anti-undead effect and not actually light?