If I proceed with the scenario below, how much will it cost and is it possible for the IP to stop?

We are going to use the attack range app from Splunk. In this regard, when we proceed with the attack, we are going to attack our AWS instance from an external server, but I am wondering about the approximate cost and if we attack like this, is the external server IP eating Ben. Assuming I take anti-drug vane, is it correct to create an instance and install and proceed with the app there?