You shall know there are only 3 unforgivable curses. Each one will earn you a ticket to Azkaban. Let’s start with the Imperius Curse. The Imperius Curse( Imperio) allows the caster to assume full control of the target. Usually, innocent people are under this curse while doing Lord Voldemort’s bidding. And the Cruciatus curse? That tortures a target with very oh very much pain. You’ll get a life sentence to Azkaban if you use it. Last but not least, the Killing curse. It obviously kills. And only one boy is known to survive it; twice! One; Lily Potter’s love 2; Being the Master of Death. You know who it is: HARRY POTTER!