Demonic Rage

The target is ingulfed in rage, their eyes turn red and fire engulfs the caster's body, doing 1d4 damage to anything other than the caster that comes in contact with the flame and can not use any other magic for the duration of the spell. The caster rolls with advantage on their next attack on their next turn and can add 2d6 to what ever they decide to do. On the second turn, the caster must succeed on a DC 13 Constitution Saving through, or the DM can decide what the caster does (the lower the role, the worse it can be), if the DM decides on an attack, the caster rolls with disadvantage to hit, and on a hit 4d4 are added to the damage or if the caster succeeded on the saving through, the only effect will be 4d4 added to an attack role if the caster does attack. On the third turn, the caster must succeed on a DC 18 Constitution Saving Through or the DM decides on the action then when the caster's turn is completed, they are knocked unconscious for another round and take 1d12 damage; if the caster succeeded on the saving through, the caster can add 4d4 + 1 damage to their next attack. While under the influence of this spell, if there is a failed save, the caster sees all near by living things as hostiles that must be taken out.