Suggested by Dr. Doctor, refined by guardianangel1911, Hitman H94, and Commander Cross
For this match The Joker has kidnapped Leonardo Da Vinci, and taken him to the Sionis Steel Mill located at the Arkham City construction site in order to innovate newer and stronger weapons than Batman could come up with.
Unbeknownst to the Joker, Leonardo has friends in high places. The Mentor of the Assassin Brotherhood, Ezio Auditore da Firenze, has tracked the Joker to the Steel Mill. He has a maximum two weeks to prepare for the infiltration, and subsequent murder of Joker. He has access to all resources that may be available within the surrounding Arkham City.
The Joker has a heavily fortified Steel Mill, and a large amount of guards, armed solely with Shields, Tazers, and knives, and in the room with Leonardo, he has three sniper-armed guards.
In order to save Leonardo, Ezio must do whatever he can within two weeks to gather the resources necessary for the rescue, exhibit the skills necessary to get that far, and finally defeat the Joker in a no-holds barred fight between the two.
Can Ezio do it? Or will Joker end up finishing a match with a smile on both of their faces?