Les trois cartes Urza's Mine, Urza's Power Plant et Urza's Tower, de l'édition Antiquities, forment un cycle appelé "Urzatron" (ou "Tron" en abrégé). Ce terme provient de la série animée Voltron, ultrapopulaire au Japon, dans laquelle des robots s'assemblent pour former un robot surpuissant.

Source 1 ("@maro254 did meld always just use 2 cards, or were there designs that used more. was there a voltron-esque design") - Source 2 (Question #5 - "Interestingly, four of the land subtypes come from a three-card cycle (Urza's Mine, Urza's Power Plant, and Urza's Tower—known as the Urzatron) from Magic's second expansion, Antiquities.")