ΔE 16.0, loose: different enough that you should pick on purpose. Eye of Terror is much more saturated, cooler than Wyvern Fury.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Eye of Terror is much more saturated, cooler than Wyvern Fury.
The same difference applies the other way round: Wyvern Fury is much more muted, warmer.
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 Wyvern Fury on the colour wheel See Eye of Terror on the colour wheel
All matches: Wyvern Fury equivalents · Eye of Terror equivalents