Of all the grenades, you complain about the ones that DON'T kill you? Really? What, you're cool with Flux, Magnetic and Fusion grenades one-shotting you? *scratches head* Great, now you've got me started. Look, the easiest solution is to either not stand near teammates when you're at half health or lower - should be pretty easy - or, if you're hit by them while at max health, avoid taking further fire - again, should be pretty easy. Just duck around a corner and/or be mindful of your surroundings. It's not like these grenades can kick down your front door and murder your family; they need to be thrown straight at you and have a hard range cap.