Duplicate heroesPer team: no repeats on a team, like a real match, but two teams can share a hero. Lobby: every player in a custom match gets a different hero.
Avoid repeatsSkip heroes a player got in their last few rolls.
Role oddsPer hero: every hero is equally likely, so Duelists (27 of them) come up most. Per role: each allowed role is equally likely first.
Spin speed
ResetClear picks, or wipe everything back to defaults.