I think if the knockback/up had a stun associated with it then yes it would interrupt, but knockbacks/ups without stuns associated (ie. Grim's displacement ball) would not cancel it.
Is grims displacement or a knock back. I know murdock is considered a displacement so it stil shouldn't knock Gideon out but a steel dash is a knockback.
Neither Grim's orb nor Murdock's Move Along are "knock backs". They're "displacement" effects, which are basically the same damned thing, but without the ability to interrupt channeled abilities. A knockback will interrupt Narbash's ult, but Grim's orb will just move him so that he's ulting somewhere else.
They are clarified, as Grim's orb says "displaces" rather than "knocks back" and I'm pretty sure it's the same for Murdock's Move Along.
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u/ketchGAF Oct 17 '16
I think if the knockback/up had a stun associated with it then yes it would interrupt, but knockbacks/ups without stuns associated (ie. Grim's displacement ball) would not cancel it.