History of Master difficulty

Master is a higher difficulty tier for Nightfall strikes, raids and dungeons, above Hero/Legend and below Grandmaster for Nightfalls. Master Nightfalls add a modifier layer plus the Champions Mob modifier (Champions), recommend a Power level about 20 above the Pinnacle cap, and have no matchmaking. Master raids and dungeons carry no Threat modifier and, per one source, Bungie did not raise enemy health or stagger resistance for them. Master raid challenge encounters are a source of Adept weapons.

Numbers (power levels, rewards) change by season; the figures above come from a Lightfall-era report and may be outdated. The "Master" triumph is a separate page: Master.