I was running rated bg's tonight and found out if you mind control a druid in tree form, when they break the mind control, they will be on your team.
This means they will lose a player and their player will be friendly on your team. Making the match 11 v 9. They will still rez at a normal graveyard with the opposing team and stay on your team even after death. Nothing will break this and you will be able to continue the game with their team down one player.
Screenshots to prove it.
![]()