ΔE 18.9, loose: different enough that you should pick on purpose. Trollblood Highlight is noticeably lighter, much more muted, cooler than Baneblade Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Trollblood Highlight is noticeably lighter, much more muted, cooler than Baneblade Brown.
The same difference applies the other way round: Baneblade Brown is noticeably darker, much more saturated, 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 Baneblade Brown on the colour wheel See Trollblood Highlight on the colour wheel
All matches: Baneblade Brown equivalents · Trollblood Highlight equivalents