Magical Rage {wizard}

You have the ability to channel your anger into arcane power. Twice per long rest, you can decide to fly into a Rage as a bonus action, which lasts for 1 minute or until you decide to stop raging. However, it ends early if you spend a turn without attacking or taking damage. It also ends if you are knocked unconscious. When you rage, you gain the following benefits:

• You can cast cantrips and spells while raging
• All damage caused by your spells Adds rage damage 
• You have proficiency on Wisdom saving throws  when you are raging
• You are resistant to bludgeoning, piercing, or slashing damage.
• You have advantage on any Concentration checks triggered by taking damage.
•  When you cast a spells in the rage and exit, about making a con save (DC= 10+spell level )or take a level of exhaustion upon failing