Richard The Lionheart's version of Excalibur, from Fate/Strange Fake, is more than just a pallet swap; there are some changes in the blade, the crossguard has a different pattern, and yeah--it's also red. Overall, it's different enough to be its own thing, but close enough to know what inspired it.
His version of Avalon has a really intricate pattern that gives it a nice, majestic look. I saw a few different versions, but I went with the FGO one because it's the one I could get a cleaner reference from.
One of my favorite things in this video has to be how Richard can just spam his Noble Phantasms, and how different the output is depending on what kind of sword he uses. It was a blast! I also like the lion’s roar that each shot gives.
I’m always a fan of making different iterations of Excalibur.