Complete guide to finding Onix locations and evolving it into Steelix in Pokemon Brilliant Diamond and Shining Pearl
Onix Hunting Grounds: Where to Find This Rock Snake Pokemon
Pokemon Brilliant Diamond & Shining Pearl guide: Comprehensive locations for catching Onix and detailed evolution process to obtain Steelix.
Onix stands as one of the most recognizable Rock-type Pokemon, though its evolution demands more than simple level progression. Achieving the powerful Steelix transformation in Brilliant Diamond and Shining Pearl requires strategic preparation and specific item acquisition.
Both the rock serpent Onix and its steel evolution Steelix boast distinctive designs and formidable combat capabilities, yet transitioning between these forms presents unique challenges for trainers.
Among the select group of Pokemon requiring trade evolution, Onix’s transformation process is further complicated by the necessity of obtaining the scarce Metal Coat item before exchanging.
Available in both game versions, Onix typically inhabits subterranean environments. Prime hunting locations include Big Bluff Cavern within the Grand Underground, Iron Island’s cave systems, and the Oreburgh Mine near the first gym. For increased encounter rates, visit these areas with Pokemon that have the Compound Eyes ability active in your lead slot.
When attempting capture, consider using False Swipe to safely reduce Onix’s HP without knocking it out, and stock up on Ultra Balls or Dusk Balls for optimal capture rates in cave environments.
Metal Coat Mastery: Securing the Essential Evolution Item
The crucial second phase involves locating the exceptionally rare Metal Coat, which serves as the catalyst for Onix’s evolution.
Trainers can acquire this vital item through two primary methods:
- Complete the National Pokedex requirements by encountering every Sinnoh region Pokemon and conquering the Pokemon League. Once accomplished, retrieve the Metal Coat from Riley’s residence on Iron Island. This method guarantees the item but requires substantial game progress.
- Explore the Grand Underground and employ the Thief move to pilfer Metal Coats from wild Bronzor (5% hold rate), Magnemite (5% hold rate), or Beldum (also 5% hold rate). Alternatively, capture these Pokemon and manually remove the item from their held inventory. Using a Pokemon with the Frisk ability helps identify which wild Pokemon are holding items.
- Equip your designated Onix with the Metal Coat from your inventory before initiating the trade evolution process.
For efficient farming, lead with a Pokemon that has Compound Eyes and Frisk abilities, then use Thief repeatedly until you secure multiple Metal Coats. This preparation allows for evolution attempts with optimal Onix IVs and natures.
Evolution Execution: Trading Onix into Steelix Successfully
Onix’s evolution incorporates the unusual trade mechanic, meaning the sending player doesn’t witness the transformation or retain the Pokemon. However, savvy trainers can circumvent this limitation through coordinated trading with another Onix that also carries the Metal Coat.
All participants must defeat Oreburgh City’s Gym Leader Roark to unlock Pokemon Center trading facilities, specifically the Local and Global Rooms essential for player exchanges.
Once prerequisites are satisfied, execute these steps precisely:
- Launch your Pokemon Brilliant Diamond or Shining Pearl game
- Proceed to any Pokemon Center and access either the Local Room (for nearby trades) or Global Room (for worldwide connections)
- Establish a trade room and select your Metal Coat-holding Onix for exchange
- Finalize the transaction and observe the received Onix immediately evolve into your desired Steelix
Critical reminder: Always coordinate with a trusted trading partner to ensure both players receive Steelix in return. Avoid random trades where you might lose your Pokemon permanently.
Advanced Steelix Strategies: Maximizing Your New Pokemon
Beyond the evolution process, understanding Steelix’s capabilities ensures you maximize your investment. This Steel/Ground-type boasts exceptional Physical Defense (200 base stat) while gaining valuable resistances to Normal, Flying, Rock, Bug, Psychic, Dragon, Fairy, and Steel moves.
Optimal move sets include Earthquake for STAB damage, Iron Tail for Steel-type coverage, Curse to boost attack and defense simultaneously, and Stone Edge or Rock Slide for additional coverage. Consider the Sheer Force ability combined with Rock Polish to overcome Steelix’s mediocre speed stat.
Team composition benefits from pairing Steelix with Pokemon that cover its Water, Fire, Fighting, and Ground weaknesses. Empoleon, Gyarados, or Milotic make excellent partners that resist these threatening types while Steelix handles Electric and Poison moves for them.
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