Base Set·#56·1999
Onix, the colossal Rock Snake Pokémon, is a beloved Generation I creature known for its powerful Rock/Ground typing and an evolution into the formidable Steelix, holding significant cultural weight within the franchise. This specific card hails from the iconic 1999 Base Set, presenting a common, non-holographic variant that stands as a foundational piece of the Pokémon TCG's inaugural era. Here, visitors will discover Onix's fascinating Pokédex lore, its card's precise attack details and energy costs, its weakness, and a comprehensive history of this pivotal edition.
Read more ↓Onix, the Rock Snake Pokémon, is a colossal serpentine creature introduced in Generation I. It is a dual-type Rock/Ground Pokémon, renowned for its immense size and strength. Onix is the pre-evolution of Steelix, evolving when traded holding a Metal Coat. In the games, Onix is a common sight in caves and rocky areas, often serving as a formidable early-game challenge for trainers. Its diet primarily consists of rocks and minerals, which it grinds down to strengthen its body. Onix is known for its ability to tunnel through the earth at high speeds, creating vast underground networks. Its distinctive segmented body, composed of numerous boulders, allows it to maneuver through tight spaces despite its size. Onix plays a significant role in the Pokémon anime, most notably as Brock’s signature Pokémon, showcasing its loyalty and power in many battles. Its imposing appearance and raw power have cemented its place as an iconic Pokémon, symbolizing the strength and resilience of the Rock type. Its unique design and early appearance in the franchise have contributed to its lasting cultural significance among fans.
Last updated: April 10, 2026
Base Set
