My resting heart rate is far below average. The rush is why I play rated. It’s why you don’t. It’s why you’ll be sticking to epics, and why you shouldn’t be trying to change something for the worse that you won’t touch.
Even if they did allow consumables, you’d still need 15+ goons to hide behind.
Alternatively you can play Classic Era, where the PvP is all about stupid trinkets and consumables, and it’s a blast. But there’s no objective ranking attached to it.