(Note: I'm being consistent with my earlier method, which was odd to many people, and rolling the damage for each target separately, just to forestall the obvious question.)
Bottom of 90:
All three demons fail their saves!
Brian takes (52-10) 42 hp, and is reduced to 133 hp
Paul takes (57-10) 47 hp, and is reduced to 104 hp
George takes (39-10) 29 hp, and is reduced to 107 hp
Lothir
[sblock]
Can breathe again in round 92
[/sblock]
Top of 91:
Ringo concentrates and casts, penetrates SR, but Lothir makes his SV for (17/2) 8 hp.
Paul penetrates SR, but Lothir makes his SV for (14/2) 7 hp
George penetrates SR, but Lothir makes his SV for (29/2) 14 hp
(lowest roll of all SVs was a 20)
Lothir has 62 hp after all the magical attacks
Brian misses both claws (best roll 28), but hits Lothir in the franistan with the bite for (20+16-7) 29 hp.
Lothir has 33 hp left.
Brian's dark malevolent aura fades away.
Evil
[sblock]
Just as a reminder, Brian is still shaken by Lothir's presence.
[/sblock]
Bottom of 91 for Good!