They already have instant cast... They just want to lose 6 ATT levels for just -3% channelling. Warsoul helmet is better considering you only lose 20 Dex (2 ATT levels)...
are you trolling or just mentally challenged, every time you + or - suggestions you have nothing to back you up and just say the first retarded thing that comes out of your mouth
-3 runes would mean less DMG for those using it because they sacrifice 6 atk lvl for it, IMO I wouldn't do that trade but if others would I have nothing against adding it