Variables not working properly on bullets

I basically made an item that acts as a skill, this skill shots a projectile, which by default deals 0 damage

The bullet has a procedure attached to it, this procedure summons particles around the mob and deals damage to the target, I put a variable called TechniquePoints as the damage value, this variable's value is set to 7, and this works, 6 shots are needed in order to kill a 40 HP mob, I also added an effect that increases this value (like strength), the problem is that the value indeed changes, but the damage dealt doesn't, which doesn't make sense, with a test item I made I can see that the value changed without a doubt, but the bullet is still dealing 7 damage.