New Max Upgrade release on 21 April 2022

Attack is maximum upgrade to +130

100% success rate

Attack rate is maximum upgrade to +325%

250% below = 100% success rate

250% above = 70% success rate

Defense is maximum upgrade to +108

100% success rate

Defense rate is maximum upgrade to +80%

55% below = 100% success rate

55% above = 70% success rate

HP ups is maximum upgrade to +950HP

600HP below = 100HP per card

600HP above = 50HP per card