How to evolve riolu

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Last updated: April 4, 2026

Quick Answer: Riolu evolves into Lucario when it has a high friendship level with its trainer and is leveled up during the daytime. This evolution method applies to all main series Pokémon games where Riolu appears.

Key Facts

What is Riolu and Lucario?

Riolu is a small, quadrupedal Pokémon known for its blue and black coloration and its distinctive yellow 'mask'. It is classified as the 'Emただし Pokémon' and is a Fighting-type Pokémon. Riolu is the pre-evolved form of Lucario, a much more popular and widely recognized Pokémon. Lucario is a bipedal, humanoid Pokémon that is also a Fighting and Steel-type. It is renowned for its ability to sense the aura of living beings, which allows it to predict movements and emotions. Lucario's design is sleek and powerful, making it a fan favorite and a prominent figure in various Pokémon media, including movies and the anime series.

How Does Riolu Evolve?

The evolution of Riolu into Lucario is tied to two specific conditions: friendship and time of day. For Riolu to evolve, its friendship level with its trainer must be sufficiently high. Friendship, often referred to as happiness in earlier games, is a hidden stat that measures the bond between a Pokémon and its trainer. Once this friendship threshold is met, Riolu will evolve into Lucario, but only if it levels up during the daytime. If Riolu levels up at night with high friendship, it will not evolve. The game's internal clock determines whether it is day or night, which can vary depending on the game and the player's real-world time.

Understanding Friendship in Pokémon

Friendship is a mechanic that has been present in the Pokémon series since its second generation. It represents the bond between a trainer and their Pokémon. Several actions can increase a Pokémon's friendship:

Conversely, certain actions can decrease friendship:

To ensure Riolu evolves, trainers should focus on positive interactions. Keeping Riolu in the active party, engaging it in battles it wins, and using items that boost friendship are key strategies. If Riolu has fainted often, players may need to spend more time building its friendship back up.

The Importance of Time of Day

The second crucial element for Riolu's evolution is the time of day. In most Pokémon games, there is a distinction between 'day' and 'night' periods. This is usually determined by the Nintendo DS/3DS system's internal clock or the game's own simulated clock. Riolu will only evolve if it gains a level during the 'day' cycle. If the player is playing at night, or if the game's internal clock is set to night, Riolu will not evolve even with maximum friendship. Players need to be mindful of this to achieve the desired evolution.

How to Check Friendship

The method for checking friendship varies slightly between games. In some titles, like Pokémon X and Y, Pokémon Omega Ruby and Alpha Sapphire, and later generations, there's an NPC (Non-Player Character) who can tell you the approximate friendship level of your Pokémon. Often, this character is found in a Pokémon Center or a specific town. They might say phrases like "I feel like you really like your Pokémon!" or "They seem to really like you!" to indicate high friendship. In earlier games, or if such an NPC is unavailable, players often rely on experience and external guides to gauge friendship levels. The key is to aim for the highest possible friendship before leveling Riolu up during the day.

Riolu's Location and Acquisition

Riolu can be found in various locations across different Pokémon games. Its availability often depends on the specific title. For instance, in Pokémon Diamond and Pearl, it could be found in the Safari Zone. In Pokémon Platinum, it was a gift Pokémon from Riley. In Pokémon Black 2 and White 2, it could be found in Floccesy Ranch. Knowing where to obtain Riolu is the first step, followed by understanding its unique evolution requirements.

Lucario's Strengths and Abilities

Once Riolu evolves into Lucario, it becomes a powerful Fighting/Steel-type Pokémon. Its high Attack and Special Attack stats make it a versatile offensive threat. Lucario is known for its signature move, Aura Sphere, a powerful special attack that never misses. Its ability, 'Steadfast', raises its Speed each time it flinches, and its hidden ability, 'Justified', increases its Attack when hit by a Dark-type move. Lucario's unique typing and strong offensive capabilities make it a valuable addition to any trainer's team.

Tips for Efficient Evolution

To efficiently evolve Riolu into Lucario:

  1. Obtain a Riolu.
  2. Equip the Soothe Bell item to Riolu if possible.
  3. Keep Riolu in your party and battle with it frequently, ensuring it doesn't faint.
  4. Use vitamins to boost its stats, which also increase friendship.
  5. If available, use the friendship-checking NPC to monitor its progress.
  6. Once you believe friendship is high, level Riolu up during the in-game daytime.
  7. If it doesn't evolve, continue the process until it does.

By following these steps, trainers can successfully evolve their Riolu into the formidable Lucario.

Sources

  1. Friendship - Serebii.netfair-use
  2. Riolu - Bulbapedia, the community-driven Pokémon encyclopediaCC-BY-SA-3.0
  3. Lucario - Bulbapedia, the community-driven Pokémon encyclopediaCC-BY-SA-3.0

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