Enkidu is honestly a scarier opponent than Gilgamesh is.

Yeah, Enkidu's not on paper as powerful, but is still someone who can fight Gil in his prime going all out to a Standstill, lacks his ego, AND is the exact opposite of what Excal is good against.

Proto Arthur can't even use Excalibur against Enkidu to begin with, and Artoria's just going to get slapped aside by Enkidu's own noble phantasm.

Enkidu flatly doesn't need Gil to pull a 1v2 against them.

With Avalon Artoria could potentially stall forever otherwise Gil or Enkidu can potentially solo

Gil and Enkidu have it. The weapon spam can be dealt with but is annoying and constant pressure, double the chains is just annoying to deal with, even if it isn't binding for long there's so many weapons flying around that it'll let one or two hit, and either Gil or Enkidu can cover for each other to charge Enuma Elish or pull out some other bs. The Artoria and Arthur aren't going down easy but they don't have any real win con either.

Artoria doesn't normally have access to Avalon.

Gil with a full powered EA one shots both

Gil doesn't use EA quickly enough

If he doesn't f**k around and starts getting to job seriously, he still slams lowkey