ΔE 13.3, fair: the same colour family, but not a straight swap. Arcane Gold is warmer than All That Glitters.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Arcane Gold is warmer than All That Glitters.
The same difference applies the other way round: All That Glitters is cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See All That Glitters on the colour wheel See Arcane Gold on the colour wheel
All matches: All That Glitters equivalents · Arcane Gold equivalents