Lucario still seeks other Pokémon of his own skill level to fight. He had happened upon a tiny Joltik. The Joltik expresses much confidence that he could easily defeat the new challenger.
However, Lucario only looks down at the tiny thing and wonders how it can possibly be any threat.
...
We can guess that a few hours from now, Lucario will have wondered where the Joltik had disappeared to, and why he is so itchy. o.o