Create a blueprint for the Double Damage Pick-Up. Put a collision trigger in it. When it overlaps with your player actor or AI it casts to actor and “InitiatesDoubleDamage” event in the actor. Instead of having a Multiplier I just changed the Current Damage itself. Picture Below. Also I put a picture of common use timers, you may not need them for this purpose but tinker with them, you will use them a lot.
