Me and my friend have been replaying through grounded and once we got the mint mace we noticed, the AoE at level 6 does friendly fire damage. I think this is a pretty big flaw because you can't really control the AoE. Sometimes my friend will be 10-15 centimeters away and he still gets hit by it. I think maybe disabling friendly fire on the AoE or add an option to toggle it off somehow would be a good solution. I also would like to point out that the poison nova got it's friendly fire turned off. That's the only real complaint about our replaythrough so far. Having a blast otherwise.