Isekai'd: The OP Summoner

Me and my classmates were summoned to another world as heroes. I was the only one who didn’t receive a power and was betrayed by my fellow classmates and the Machtig Kingdom. I was banished to the wastelands, a land full of monsters, where no one wants to come. I thought I was done for until I received a notification from my system. [Ding! you have been given an Error……….] I thought the system was broken until I opened and found out why it glitched. After I seen my skill I knew my revenge was inevitable.