Aleister the Invoker of Madness

Aleister the Invoker of Madness was introduced in the 2018 Yu-Gi-Oh! TCG booster set Shadows in Valhalla. This card serves as a thematic expansion of the Invoked archetype, originally debuted in the Fusion Enforcers set, which centers on the mysterious Aleister the Invoker. The card was designed to provide the archetype with a critical search engine, allowing players to bridge the gap between their hand and the extra deck by facilitating the summoning of high-level Fusion monsters through its specific Link-Arrow configuration.

The artwork follows the aesthetic established by Kazuki Takahashi and the Konami design team, depicting Aleister in a transformed, more chaotic state that reflects the card's effect of facilitating madness-fueled summons. As a Secret Rare in the Shadows in Valhalla set, the card features the distinct diagonal foil pattern that signifies its high rarity. Upon release, it was well-received by competitive players for its efficiency, as it streamlined the Invoked engine and significantly increased the consistency of decks utilizing the archetype.