ΔE 14.6, fair: the same colour family, but not a straight swap. Evil Root is a little lighter, much more muted than Magmadroth Flame.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Evil Root is a little lighter, much more muted than Magmadroth Flame.
The same difference applies the other way round: Magmadroth Flame is a little darker, much more saturated.
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 Magmadroth Flame on the colour wheel See Evil Root on the colour wheel
All matches: Magmadroth Flame equivalents · Evil Root equivalents