[The once and future king]

All that matters is who touched the ball last intentional or not. A player must receive the ball from his own player to be offside.

However it is important to remember that the offside rule applies to where you are when the ball is kicked, not where you are when the ball is received. So assuming the ball is kicked and you are offside it dosnt matter if it deflects after it was kicked because you were offside the moment it was kicked which was prior to the deflection.

So assuming that the ball is passed to you and you are in an offside position it dosnt matter if it deflects of an opposing player on the way to you, you were offside when it was kicked.

If you are in an potentially "offside" position but the opposing team has the ball and then passes it, and either by "shank" or "deflection" you receive it, you are in no way offside.

If the opposing team has the ball and you are the first player to receive it on your team, it is impossible for you to be offside. If you are stood in front of the goalie and he shanks it to you = onside. If he kicks it and it hits one of his own players and then you receive it = onside.

However if you had a team mate standing next to you, and you passed it to them, they would be offside.

In summary then, you can only be offside when receiving the ball from your own team.