Number 27: Dreadnought Dreadnoid

Number 27: Dreadnought Dreadnoid was introduced to the Yu-Gi-Oh! Trading Card Game in the 2020 Duel Overload set, a collection designed to bolster existing archetypes with new, powerful support. As an Xyz Monster, it follows the design philosophy of the Rank-Up-Magic mechanics, specifically engineered to provide Rank 4 decks with an aggressive transition into higher-ranking monsters. The design features a heavy, industrial aesthetic consistent with the machine-type monsters frequently seen in the ZEXAL era of the series.

The card was illustrated by the Konami design team as part of the broader 'Number' series, which are central to the lore of the Yu-Gi-Oh! ZEXAL animated series. Upon its release, it was well-received by competitive players for its unique effect that allows it to special summon a Rank 10 or higher machine-type monster from the extra deck, making it a strategic utility piece. It remains a staple in niche machine-focused strategies, valued more for its utility and summoning requirements than its rarity as an Ultra Rare.