This is it. The official Tier 0 deck of Yu-Gi-Oh: Duel Links. This deck is almost absolutely completely invincible. It's a deck that has 99% winrate against decks /specifically made to counter it/. Against anything else it's 100%. Good job Konami.
These responses show how much the obsession with pvp destroys your brains. This comment was made in a page meant to talk about Crow level 40. It's obvious the cards he drops don't make a good deck; it's his own deck that is tier 0.
I think OP is talking about the deck Crow's running, rather than the deck you can farm from Crow. To be fair, it's a bit challenging to face off against Level 40 Crow, especially considering he has terrible drops for his archetype.