When The Hangman, Ambitious Benefactor enters the battlefield, choose an opponent. You may look at that opponents hand at any time.

Whenever a creature enters the battlefield under your control, you may pay {B}. If you do, that creature becomes black and a pawn, in addition to its other types.

Whenever a pawn you control leaves the battlefield, you may cast target spell from an opponents hand. (Chosen randomly unless you select a card revealed to you.)