Sorry my wow terms are quiet a issue when trying to play a new game.
Cloak i am referring to there immune to everything spell.
Basically they get the ball, cloak(immunity) , sprint. pass to the other, who sprints with cloak and scores. You can't stop it, no matter what. The best you can do is beat them to the ball, but once they get it, its GG.
Be very difficult to keep them off the ball in the opener expecially with double sprint considering 1 can sprint, grip sprint so they have the ball first no matter what.
and sorc healer can grip, kind of disgusting, and things like this will outplay skill players.