A portal has opened between the world of Adventure Time and the Marvel Universe. Blade, being the paranoid supernatural monster hunter he is, decides to enter the portal to investigate. The portal leads him to the front lawn of Marceline's house. His supernatural sense begins tingling when Marceline comes out of her house to investigate. A fight ensues as Blade screams that he must slay the vampire witch. Marceline is freaked out that an angry black man is running toward her with a wooden stake in his hand.
Both combatants are in character, have standard equip (Marceline is armed with her bass ax and her teddy bear Hambo. Blade has his usual gear). All standard means of victory is allowed (KO, incapacitation, BFR, or death).