The league champion makes the loser's first-round pick for them next season, with no obligation to make it a good one. Champions oscillate between mercy and sabotage, and the not-knowing is the punishment. Documented alongside an engraved 'DEAD ASS LAST' pint glass in one X-famous league.
Budget note: this one costs nothing but dignity, which makes it a strong pick for leagues that would rather spend the pot on the champion than on the loser's downfall.