So.... it turns out I wasn't the only who thought there was a similarity. I legit looked up 'Nitrocris Alter Yugioh' and a few reddit posts made fanarts of her being such.

Neat.

The death mechanic in FGO is just another term for "Shadow Realm"

Casual Yugioh player here :)

God I remember that crap and I cant belive it's still relevant

Lmfao