the scarlet police have me at gun point

Assets/Scripts/Abilities/Upgrades/AbilityUpgrade.cs

@@ -5,8 +5,8 @@ public class AbilityUpgrade : ScriptableObject
     [Header("Identification")]
     public string upgradeName;
     public Sprite upgradeIcon;
-    [Header("Stats")] 
-    public PlayerAbility thisPlayerAbility;
+    [Header("Stats")]
+    [SerializeField] private string hi; //never use this lol it's just for the header
 
     public void ApplyUpgrade(PlayerAbility abilityToUpgrade)
     {

Assets/Scripts/Abilities/Upgrades/AttackSpeedUpgrade.cs

@@ -1,11 +0,0 @@
-using UnityEngine;
-
-public class AttackSpeedUpgrade : AbilityUpgrade
-{
-    [SerializeField] private float speedUpgradeAmount;
-
-    protected override void UpgradeEffects(PlayerAbility abilityToUpgrade)
-    {
-        thisPlayerAbility.cooldown *= speedUpgradeAmount;
-    }
-}

Assets/Scripts/Abilities/Upgrades/AttackSpeedUpgrade.cs.meta

@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 8cf716a335ed64e9c9c64a9e934acbd8

Assets/Scripts/Abilities/Upgrades/CooldownUpgrade.cs

@@ -0,0 +1,13 @@
+using System;
+using UnityEngine;
+
+[CreateAssetMenu(fileName = "Cooldown Upgrade", menuName = "AbilityUpgrades/CooldownUpgrade")]
+public class CooldownUpgrade : AbilityUpgrade
+{
+    [SerializeField] private float cooldownDifference;
+
+    protected override void UpgradeEffects(PlayerAbility abilityToUpgrade)
+    {
+        abilityToUpgrade.cooldown = abilityToUpgrade.baseCooldown * ((float)Math.Pow(cooldownDifference, abilityToUpgrade.attachedUpgrades[this])); //almost forgot my math there...
+    }
+}

Assets/Scripts/Abilities/Upgrades/CooldownUpgrade.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: e80971b6dc38dd3bf84fc18ed9696f15

Assets/Scripts/Abilities/Upgrades/ProjectileCountUpgrade.cs

@@ -5,6 +5,7 @@ public class ProjectileCountUpgrade : AbilityUpgrade
 {
     protected override void UpgradeEffects(PlayerAbility abilityToUpgrade)
     {
-        abilityToUpgrade.projectileCount++; //idk how this will work for the stacking.
+        abilityToUpgrade.projectileCount =
+            abilityToUpgrade.baseProjectileCount + abilityToUpgrade.attachedUpgrades[this];
     }
 }