League of Legends DODGE BALL.

So these are the rules apparently from what I'm seeing:

• You can't leave the Baron pit until you die
  
• The pit is separated by half with wards.
  
• You can only use skill shots, no basic attacks.
  

No idea about summoner spells and such.

Barrier and Heal were used. If you can use summoners (which I would assume since they were on cooldown) those are allowed.