Though players do encounter a handful of Legendary Pokemon during the main story of Pokemon Brilliant Diamond & Shining Pearl, it's not until after they've completed the game that they'll be able to catch any of them besides their game's mascot. The Lake Guardians are perhaps the easiest to find in this regard, but if players do a little digging, they'll be able to track down a host of other great Legendaries, including the fire/steel-type Pokemon, Heatran.
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