Artemis Entreri (Legendary Forgotten Realms Assassin)
Batman (no intro needed)
Fed up with Batmans interference the local Crime bosses have hired on a legendary Assassin to take out the dark knight.
Gear: Artemis has a standard sword and dagger with standard enchantments (Armor, such as bat cuffs, not a problem), along with his belt knife and polymorph cloak. (allows him to turn into a bat, the irony)
Batman has Bata-rangs (with homing), grapple gun, and smoke grenades (gotta limit the tech to avoid curbstomp)
All other skills apply, no outside help, no BFR, Morals off. Current versions of both characters.
Round 1: Artemis gets the drop on Bruce.
Round 2: Bruce gets the drop.
Round 3: no advantage to either.
All rounds take place on a standard rooftop with places aplenty to hide and/or stealth. Fight not limited to remain on rooftop.
Who wins and why?