12 more wins to go and plenty of time if I can get at least 5 per hour which is my average without a friend Broly.
Speaking of friends for tournament. Here is my ranking for most useful.
1. Broly: Nuke everyone, easily the best friend character even if you have your own broly due to how the order of round can screw you over. Just have ki items or orb changers handy and you are good to go.
2. Turles: +2 ki if hp above 50% which is so useful for supers even if his leader skill is locked away and he links decently with a lot of SSJs.
3. Vegeto: +25 attack to everyone as a passive. Have your own +25% attack unit and you can kill most people without having to break your ki threshold most of the time.
4. Over in a Flash/Shocking Speed units: SSG AGL Goku, MysticGohan, PHY KaioKen Goku and so on give the amazing +3/+2 ki to units that share this link. Very useful to have if your team has units with the link.
5. AGL Frieza: Can tank really well if all 3 opponents are attacking in 1 turn, not too useful outside of that.
Every other leader is mostly meh due to their leader skills being locked away and their passive really only boosts themselves vs the entire team.