Who is the most skillful bowler?

[shortpitched713]

What, how is deviation off the wicket swing?

Unless I have the definitions all wrong, seam is supposed to be deviation off the pitch and swing is movement in the air?

Swing can continue off the pitch, depending on if/how seam position is maintained. But generally for a ball to move two ways in a delivery it would swing in the air one way, then seam back the other way.