To all the donks who think this card is not good : Its a staple x 1 for a deck that has room for techs.
Crow can be useful vs DM (Banish Navigation so they cant negate ur spells or traps), vs Shiranui (banish S.Sword so they cant sychro), vs Karakuri (banish INN), vs BEWD (banish their Bulb), vs Crystrons (banish Impact), vs WC (banish Verre), vs Lunalight (banish Fox), vs Lightsworn and Thunder Dragons (banish Every after destroying her), vs Invoked MG (Banish Invokation), vs 6 Scams (Banish Fuma so Enishi can't be used) vs Neos (Banish Neos Fusion or AD changer), vs BW (banish Zephyros) vs Evil Eye (Banish Selene or Gorgoneio) and so on.
To be honest, Extra Deck does this more purposefully than having an extra card on your deck. Extra Deck is also a lot cheaper as the best XYZs belong to mini boxes.
Heraldry Patriarch (RARE) stops BE and Harpies
Steelswarm Roach (SR) stops Thunder Drags, Chronomaly Moai and Alternative BE
thanks for saying why d.d. crow is a good card. i agree. in the tcg, historically, the card has held value consistently over a long period of time, which is only possible if a card is solid staple tech. Yes, dlinks is not the tcg but crow is still good, in the hands of an advanced player.