Lucario is the 22nd character to be confirmed for the Smash Bros. 4 roster.
The fighting-type Pokemon made its debut in Super Smash Bros. Brawl, where it was considered one of the stronger characters in the game among Smash Bros tournament players.
In Brawl, Lucario was considered the ultimate risk/reward character because players could only get the most out of it when it took a lot of damage.
This is down to its Aura move, which starts off fairly weak but gets more powerful depending on how much damage has been done to Lucario. When it's close to defeat, the move can be devastating.
Many expert Lucario players have been therefore known to deliberately take damage at the start of a match in order to make the move more powerful and stage a comeback.
It would appear this strategy will be even more important in Smash Bros 4, as series director Masahiro Sakurai explained in a Miiverse post revealing Lucario's presence in the game.
"We've increased the influence of Aura this time," Sakurai said, "so a damaged Lucario is truly a force to be reckoned with."
Smash Bros. for Wii U and 3DS are being co-developed by Namco Bandai. The games have not yet been given release dates, though they are expected to launch in 2014.