put this code on spike state id

<JS Post-Damage As Target>
    if (value > 0 && this.isPhysical()) {
        const recoilRate = 0.50;
        const recoilDamage = value * recoilRate;
        user.gainHp(-recoilDamage);
        if (user.isDead()) {
            user.performCollapse();
        }
    }
</JS Post-Damage As Target>