>>16620547Lucario has god-tier coverage, including three priority moves that all have 80 base damage when STAB is applied (after Adaptability), does not have trouble either running a special set or a physical set, with Nasty Plot and Swords Dance for either one. The biggest problem he has had sweeping Gens 4 and 5 is he sub-par speed and his mega evolution fixes that.
However, I do think it is a bit too quick to be making judgments, but at the moment, he is easily one of the better megas and if he were banned, I wouldn't argue. People on Smogon are already including him with Kangaskhan as overpowered in the latter's tiering discussion thread.