Ally System

When you're connected to the internet, you'll be able to select other player's Champions as Allies when tackling towers. This will earn you both Ally Points. During the battle, once the Allied character's icon has completely cooled down, tapping it will allow the allied character to use his/her best move (X-ray attacks for Gold Tier characters) . You can use your allies as many times as you want, however, you can only earn Ally Points from them once per day.

Allied characters are immune to damage and their attacks are unblockable. Since Gold tier characters are very powerful, it's recommended to use them on a full health opponent. This will usually kill them in one blow or leave them with very little HP.