Therion "Duke" Yul

Therion "Duke" Yul was originally introduced as a core component of the Therion archetype in the 2022 core set Dimension Force. The design aesthetic centers on a futuristic, mechanical theme where the monsters act as modular entities capable of equipping other Therion cards from the graveyard to gain power and effects. This particular version was released in the 25th Anniversary Tin: Dueling Heroes Mega Pack, which served as a commemorative collection designed to celebrate the long-standing history of the Yu-Gi-Oh! trading card game by reprinting popular cards from the preceding year of releases.

The card was designed to function as a searcher for the Therion engine, embodying the synergy-heavy playstyle typical of modern high-tier card game archetypes. As part of the Mega Pack set, it utilized a super-rare foiling process, consistent with the set's goal of providing accessible, high-quality reprints for players. Like much of the Therion line, the card was well-received by competitive players for its utility in maintaining resource momentum on the field and its ability to act as both a starter and an extender in Earth-attribute deck builds.