Comment by PtaQQ

Hello, CM for BAR here, nice to see it mentioned :)

As Zephyr says state manipulation cheats are impossible since they would lead to desyncing any online battle.

Since every user technically has access to the whole game state there are user side cheats possible, like LoS hack, but these are easily detectible (as well as spectator cheating) and very active moderator team makes sure anyone using them is perm'ad so it's not worth for people to try them and it's been super rare so far.

Smurfing (using alt accounts with lower ELO to get weaker opponents/avoid moderation) is probably the most prevailent type of "cheating" but there is a lot of active and passive countermeasures implemented so most players will rarely experience issues with that.