Hey osolenye,
I’m not sure if the vending machine will pass the instigator info with it’s On Item Spawned Event
and the vending machine only gives items or consumables.
Can I suggest using a Conditional Button, with something like a visible damage amplifier in a display case.
I recon the best way to do this would be to use player classes.
a different damage amplifier for each class, they can be set to affect only that class.
say 10 levels of damage, use 10 damage amplifiers and 10 classes
use the buttons event to switch the players class.
use a sequence of class selectors that change players with the same button event, but have each class selector only affect the class before.