As a reaction, when the user is attacked you can choose to roll a d6 If you do choose to you and the enemy call 2 numbers between 1 and 6 (Has to be different numbers)
If the user calls the exact number: the user can either transform and take half damage or counter-attack for the exact same amount of damage that would have been done to them
If the enemy calls the exact number: then the user takes 150% the damage and the user is untransformed (When untransformed the user takes double the damage and the user cant transform for one turn due to rider cooldown
If the numbers said are not rolled then roll again until it does land on a number said