Umbral Sight states that if you already have darkvision from your race, your darkvision extends by 30 feet. My gnome gloom stalker has darkvision out to 120 feet, not out to 90 feet.
"The relevant equation is: Knowledge = power = energy = matter = mass; a good bookshop is just a genteel Black Hole that knows how to read." - Terry Pratchett
Umbral Sight states that if you already have darkvision from your race, your darkvision extends by 30 feet. My gnome gloom stalker has darkvision out to 120 feet, not out to 90 feet.
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Astromancer's Homebrew Assembly
"The relevant equation is: Knowledge = power = energy = matter = mass; a good bookshop is just a genteel Black Hole that knows how to read." - Terry Pratchett
My tabaxi gloom stalker has the same issue. Should be 60+30. Total under Senses shows as 120 ft