In the ring of valor, when you are being reeled up, and the gates are still up, but you can't see the other team, or attack them. A priest can use his spell Divine Hymn - You recite a Holy hymn, causing the closest 10 enemies within 15 yards to become incapacitated for 20 seconds., and heals the closest 10 friendly targets within 15 yards for 348 every sec for 6 sec. Incapacitated enemies take 40% less damage while incapacitated and for 3 seconds after the incapacitation ends. Damage caused may interrupt the effect on all incapacitated targets.
Which basically stuns you before the match ever starts, it totally confused me and my partner and through us off causing us to lose in the end. I don't think this is intended.. but the match is considered "started" but, you still can't see the the other player, nor target them so I think this is an exploit.