Lucario is a bit below average. His projectile doesn't do much damge, his counter isn't very effective. His attacks aren't strong and aren't very good for attacking people. His up b can cancel if it hits a ceiling. His side b is pretty strong though.
Overall, Lucario isn't a very good character, and I wouldn't recommend using him.
I will name everything wrong with this post.
Everything, except that you spelt lucairo right.
Lucario is High tier for many reasons.
1. He can go hand and hand with everyone in the cast, give or take.
2. His projectile is insanely strong, one of the best in the game, and one of lucario's best Ko'ers.
3. His counter is effective, just hard to use and not used very often.
4. If his attacks are not very good for attacking ppl, what are they good for? Making Toast?
5. He has a aura boost. Which means after awhile he will get stronger. At -2 stock and 172% he is the STRONGEST in the game. But that is at peak, at normal peak, He is still extremely strong. (at 172% any stock, full AS does 26%)
6. At the beginning yes, he's weak, but it means he can chain. Later, he can kill. Weak? Naw.
7. UpB is UpB, im not going to cover that. Yes it doesnt do damage, but it clings, curves so and so forth. It makes him fly.
8. Side-B is ok. It could be better, but its a bit slow, and risky to use just straight off.
9.His aerials are also some of the best in the game, namely Fair and Dair.
10. Smashes are slow, but they are powerful and have range. Jabs are great, tilts are even better.
11. Its Lucario, can't get better then that.
If you where being sarcastic, then it wasn't funny.
Hope this clarifies things!
-t2