Board Thread:Warhammer 40k General Discussion/@comment-79.112.147.114-20160201151516/@comment-86.174.92.70-20160201171721

Fulgrim and some mates (a honour guard of sorts) totally wiped the floor with a Avatar and some Eldar troops when Eldred tried to warn him of the Horus Hersey...I feel that GWS just don't really do justice to non-imperials the majority of the time.

So I'd say that they are powerful when the writer is pro-Eldar and they aren't fighting Imperials.