So how was this shitty sword spamming a battle of legends?
Cu and Hercules both have a chance, assuming competent Masters in Cu's case, or being summoned as Archer in Hercs case. Cu held him down for 12 hours despite being utterly gimped by Kirei AND having E Rank luck vs Gils A++.
Cu got the best master he probably ever could in Extra, which was just a blond Rin who buffed his luck every round and took points out of one of his other stats to give him another rank in luck.
Constantly casting spells to raise his luck so he wouldn't be just so, E rank.
Can Onii-sama defeat Gilgamesh?
sausage a paneer salad
that's not surprising
like >>124232290 said, this fight is pretty much over in the VN when we see them
the scene is more about making you feel really fucking horrible for Illya in preparation for feeling really fucking horrible for Illya in Heaven's Feel
Gil used a 16 weapon GoB against Lancelot, while he used at least 64 weapons against Heracles.
>So how was this shitty sword spamming a battle of legends?
You said "shitty sword" and they are not shitty weapons. To get those items, many of which had names, there was probably an epic battle back in history when his myth as a hero was developed. Gilgamesh was not like King Arthur who was satisfied with just one epid weapon. What if Arthur was like Gilgamesh and had sought out hundreds of great weapons ranging from Durandal to more? That part will never be known unlike Gilgamesh's.