Aquapolis·#98·2003
Onix, the iconic Rock Snake Pokémon, is a formidable Ground/Rock type introduced in Generation I, known for its massive size and evolution into Steelix. This specific Aquapolis Onix card, released in 2003, is a common variant from the unique e-Card Series, distinguished by its innovative e-Reader strip. Here, visitors will discover detailed Pokédex lore, precise attack mechanics including energy costs, weakness, and the card's historical context within the TCG's e-Card era.
Read more ↓Onix, the Rock Snake Pokémon, is a colossal creature known for its immense size and rock-hard body. Introduced in Generation I, Onix is a Ground/Rock type Pokémon that evolves into Steelix when traded holding a Metal Coat. Its natural habitat includes caves and underground tunnels, where it carves out vast networks with its powerful, drilling body. Onix's diet primarily consists of rocks and minerals, which it grinds down to strengthen its own rocky composition. In the games and anime, Onix is often depicted as a formidable opponent due to its high defense and imposing presence. Brock, one of Ash's earliest companions, famously owns an Onix, which played a significant role in many of their early adventures. Its unique serpentine rock structure and impressive stature have made Onix a recognizable and iconic Pokémon, symbolizing strength and resilience within the franchise. Its type matchups make it strong against Fire, Electric, Flying, Bug, and Rock types, but vulnerable to Water, Grass, Ice, Fighting, Ground, and Steel attacks.
Last updated: April 10, 2026
