possibly, but King did 1 shot Albion with that technique, unless merlin teleports him out of range, way I see it, variety-Merlin,I think Merlin would outsmart King.
This full extent of Merlin's abilities aren't known.Do we even know Merlin's full capabilities yet? She might have many tricks up her sleeves.
I'm kind of leaning towards King here, to be honest, just because of the immense power he showed. But he'd have to get really serious and attentive. Again, that's also because we haven't seen Merlin's full power.