Using "Immortality" or "Damage" hacks is a violation of the terms of service. Kabam (the developer) frequently bans accounts detected using modified game files in competitive modes like Alliance Wars.
At the time of this release, the game introduced or focused on: Using "Immortality" or "Damage" hacks is a violation
Modern servers will likely block access to V23.0.0. The game requires an internet connection for most modes and will force you to update to the latest version to play. Using "Immortality" or "Damage" hacks is a violation