Splinterlands has a very diverse crowd of players. Brawls have always been a unique opportunity to let low cap players have additional achievements.
I'd simplify and streamline the process.
- Auto-matchmaking
- Ghost Summoner on Gold level for everyone (you can use higher if you own them)
- Daily rewards for activity
Now you have a Guild Brawl system that engages everyone, people will rent Monsters for specific matches, small players grind daily, big players can't dodge anymore.