Blizzard has updated the PTR 9.1.5 Development Notes with a list of fights that have been adjusted for solo play.
Originally Posted by Blizzard
(Blue Tracker / Official Forums)
Dungeons and Raids
Legacy Raids
The following encounters have been adjusted to be less challenging for solo play:
Antorus, the Burning Throne
Antoran High Command
Eonar the Life-Binder
Varimathras (This change will be available in a later PTR build)
Coven of Shivarra
Aggramar
Tomb of Sargeras
The Desolate Host
Fallen Avatar
Kil’Jaeden
The Nighthold
Gul’dan
Trial of Valor
Helya
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