The gargoyle's "GJ!" thumbs up is what made this a win.

H-H-HOMERUNNNNNN!!!
(Man, I always got stomped by that Black Knight. Friggin' Greatsword of his always sends me flying..)

clear the area where the boar stands normally, then run up, hit the Black Knight once, then run down there. He'll follow, and you can kill him there. I got lucky and got a drop attack on him cause i ran around the ledge before the stairs and jumped down pressing R1 in panic as he wound up to kill me