Master of Transfiguration

When Master of Transfiguration enters the battlefield, draw a card.
Master of Transfiguration can't be blocked.
{1}{u}, Exile Master of Transfiguration: Create a
2/2 blue Human Wizard creature token with
lifelink. It has "{1}{w}, Sacrifice this creature:
Return an exiled card named Master of Transfiguration to the battlefield under its
owner's control."