Evolving Riolu into the powerful Fighting and Steel-type Lucario is a favorite goal for trainers across the Pokémon franchise. Unlike standard species that evolve upon reaching a specific numeric level, Riolu relies on a bond of friendship with its trainer. Understanding the required happiness threshold and the conditions needed to trigger this transformation can save players hours of unnecessary grinding.
The Happiness Threshold Required for Evolution
In most mainstream Pokémon games, Riolu requires a friendship rating of 220 or higher to be eligible for evolution. Once this threshold is met, leveling Riolu up just once will trigger its evolution into Lucario. However, it is essential that this level-up occurs during the daytime, as nighttime leveling will delay the process regardless of friendship status.
Fastest Methods to Increase Riolu's Happiness
To boost Riolu's friendship rapidly, giving it a Soothe Bell to hold is one of the most effective strategies. Keeping Riolu in your main active party, walking around the map, and taking it into battles without letting it faint steadily raises its affection. Feeding Riolu EV-reducing berries like Kelpsy or Pomeg berries, as well as stat vitamins like Protein and Iron, provides immediate boosts to its friendship level.
Checking Your Friendship Level Progress
Most games feature a dedicated Friendship Checker NPC or a Poketch app to monitor Riolu's affection. When the evaluator states that Riolu is very friendly or shows two large hearts, it has crossed the required line. Preparing properly and ensuring you level up in daylight ensures a seamless transition into Lucario.
Common Pitfalls That Reduce Happiness
Trainers should be cautious to avoid actions that lower a Pokémon's happiness during the training process. Allowing Riolu to faint in battle causes its friendship score to decrease slightly. Additionally, administering bitter herbal remedies like Heal Powder or Energy Powder rather than standard potions will negatively impact its bond with you.