Eternal Outrage

You channel all your anger to yourself losing control. You can now only use weapon attacks. your armor class is now 2 points less and you have disadvantage to saving throws. You now always get a critical hit on attack roles and you can use 1 more weapon attack on your turn.  Your speed is now two times bigger as well. You also must roll a D20 and on a 1, you attack one of your allies. If you succeed your saving throw, the DM decides who you attack. When there is nobody else to fight, the spell ends.