zmaxz Is there a way to save damage value to game variable ? eg: target get hurt 5 damage and save the 5 to game variable .
gamingislove You can use the Change Game Events settings on your status values for that (e.g. on your HP/health status value). This allows you to use a game event each time the status value is changed and can also be limited to e.g. only negative changes (i.e. damage) and/or coming from abilities. The change is available in the game event as a local float variable change.
hellwalker You can also translate formula into a variable inside game event but this will probably only work if your formula is not random based. I think you can also do this inside formula, so whenever a formula is called write the value inside variable through formula nodes.
gamingislove You can also store the current formula value into a variable at the end of the formula, but that might not match the final damage, as that's before any attack/defence attribute modifications.
zmaxz I ended up using this Change Game Events settings, Because the final value is same as damage , As you say ,formula value not match the final damage, Formula value have to calculate with attack/ defence attribute once .