Number 20: Giga-Brilliant

Number 20: Giga-Brilliant was first released in the 2012 Zexal Collection Tin, a product designed to capitalize on the popularity of the Yu-Gi-Oh! Zexal animated series. As an Xyz Monster, it represents the core gameplay mechanic introduced in that era, which emphasized stacking monsters of the same level to summon powerful beings from the Extra Deck. The card was specifically themed around the 'Number' series, a set of supernatural cards central to the anime's plot, designed to evoke a sense of high-stakes, mythic importance within the trading card game.

The visual design of the card leans into the futuristic and insectoid aesthetic characteristic of the early Zexal monster catalog. Like many high-rarity cards from the Zexal Collection Tin, the Ultimate Rare printing features a distinct textured foil pattern on the artwork and border, which was intended to differentiate it from standard card varieties. It was received by players as a functional support tool for Rank 3 Xyz strategies, praised primarily for its ability to provide a temporary, yet meaningful, power boost to all face-up monsters on the field.