Free entry -

Multiplayer Brawl

60-card Standard-legal deck around a legendary creature or planeswalker.

One copy of any given card in your deck other than basic lands.

Your legendary creature or planeswalker starts in the command zone and works the same way that you might be used to from Commander: you can cast it for its mana cost, and then again for an additional two mana each time.

Each player starts with 30 life.

https://magic.wizards.com/en/articles/archive/ways-play/join-brawl-2018-03-22