Lucario evolution starts step by step. Firstly, Riolu is a pre-evolution version of lucario. When Riolu reaches happiness level 220 level. Then, it evolved into Lucario. It has more evolutionary capability. With the help of lucarionite, it can evolve into mega lucario, which is one of the most powerful forms of Riolu. After the mega evolution, its strength increases tremendously and its speed and attack power reaches to the next level.
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