Go ahead, Pikachu. Resilience is an attribute that is complementary to critical strike. Just like physical attack and armor, magic attack and magic resistance, resilience can effectively resist critical strike probability. That is to say, the more resilient the spirit is, the less chance it will bear critical strike and the less critical damage it will do.
At present, there are many equipment to increase toughness in go bar Pikachu, such as Shengyou halo suit, bright star suit and so on.