Overwatch high school coach needing help making a gamemode

I would love to be able to create training gamemodes meant for building up gamesense and team coordination. I’ve tried fiddling around with the preset workshop modes to get a feel for how to do it, but still can’t figure out how to do what I want to do, which is where a hero can only be damaged if they have a discord orb on them. How would I achieve this?

There’s no detection for having Discord to my knowledge. I think you’d have to recreate a target detection in workshop for when Zen uses it, and store the target as a variable and have a damage modifier