你说的是屏障吧,法术伤害减免,2点屏障就是受到法术伤害直接-2的效果,具体计算公式可以看这个教学贴
https://tieba.baidu.com/p/8604960759?share=9105&fr=sharewise&see_lz=0&share_from=post&sfc=copy&client_type=2&client_version=12.48.1.1&st=1695606055&is_video=false&unique=724DAB152BD71B45910BB2030AE80646
https://tieba.baidu.com/p/8604960759?share=9105&fr=sharewise&see_lz=0&share_from=post&sfc=copy&client_type=2&client_version=12.48.1.1&st=1695606055&is_video=false&unique=724DAB152BD71B45910BB2030AE80646