Neither Lucario or Charizard are worth using without their Mega Evolutions, to be quite honest. Both are somewhat lacking in power and have common weaknesses. Mega Lucario is pretty bad in Doubles too...
If you're looking to get into the Smogon Doubles metagame, you should check out the
Viability Rankings thread to see what's good in the meta. You can also look at the
Sample Teams thread - you don't have to actually use one of them, but it's a good way of seeing how certain Pokemon fill certain roles and the partners they typically have. Before posting again, make sure to read
Smogon's rules.
the rules said:
Do not create threads that do not support discussion. Creating an entire thread to ask a simple question is not acceptable; every forum has their own dedicated Simple Question / Simple Answer thread. All thread starters are required to provide a good basis for discussion in their opening post.
I'm going to lock this thread. If you have any further questions, use our Q&A thread, or feel free to send me a message.