[quote=@Ammokkx]
[@The Grey Dust] "Giving them a level 4 to easily Xyz/Sync with"

How in the holy hell does that help them out if control switches? Am I missing something here?
[/quote]

Control switches at the EP of your opponent's turn. They can get out a lvl 4 or tuner on their turn to avoid this. Gives them one turn to use their copied monster, even attack with it if they want since you have to guess if you want to destroy what's coming to you or not, unknowing if they will get rid of it somehow.