Transfiguration Classroom

({t}: Add {g} or {u}.)
As Transfiguration Classroom enters the battlefield, you may pay 2 life. If you don't,
it enters the battlefield tapped.
"Transfiguration is some of the most complex and dangerous magic you will learn at Hogwarts,'"she said. "Anyone messing around in my class will leave and not come back. You have been warned."