BK would beat every1 he's lost against if he activates Eclipse first. Mages would be freaking deadlier against physical units than they already are.
Luck would play too much of a factor there though...
That's been suggested to the maker of those videos but she says that the mastery skills would make those matches too random since they're like 1HKOs.
Plus there's the fact that it would give some characters an advantage over others (Example: Reavers have a better chance of activating Colossus compared to Trueblade Astra and Sniper Deadeye).
That (like many of the battles posted there) could go either way, depending on who attacks first. IMO, Tibarn wins for this sole reason: http://uk.youtube.com/watch?v=5XJrgpmkjaw
Sheesh, complaints on both Battlesprites and OA...
The next 2D FE should probably have the option of turning off person colors or not (like in FE6) so there's no more whining of this sort...