Suggested by Anonymous Godzilla is a powerful Kaiju whose abilities are truly on another level. That being said, it will be difficult for even the King of The Monsters to deal with a whole army. Yami Yugi has dozens of monsters at his disposal and a bunch of trap cards as well. Obelisk The Tormentor on his own is already a big threat so throw in the rest of his cards and I don’t think Godzilla will be able to hold out. The massive barrage of hits that the cards can put out will be too much. Yami Yugi wins.
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Sorry, but as much as I love YUGIOH!, I doubt even Yami Yugi would stand up to Godzilla. Because of all I described about Godzilla, Yami Yugi would be burnt or disintegrated to death.
It would be tough for Godzilla to land a hit though since Yugi can fly pretty fast in his fused monster state from Capsule Monsters. He also has a bunch of strong, but fast monsters who can pick him up and take him to safety. Meanwhile his Egyptian God Cards should be able to do a number on Godzilla. Of course, if Godzilla lands a direct hit on Yami, then it could definitely be all over