So I have just bought Pokemon Omega Ruby. I'm just past Slateport City, so I'm fairly early in the game, when another player challenged me to an online battle. I know NOTHING about online battling, so I was really eager to find out if it was any fun. I accepted the challenge without any expectations, really. My team at that point consisted of a Grovyle, a Taillow, a Skitty, a Kadabra, an Electrike and a Geodude. I figured the game would have some sort of filter to make sure players are 'compatible', or something...

Turns out, the other guy had a team consisting of four legendary Pokemon, and two Charizards. I mean, really? Before the battle even started, I was like 'disconnect, disconnect, disconnect...' But during the getting-ready phase, there is no way to back out for some reason. So I gulped, and got all my party Pokémon ready for the fight.

I started off the battle with Geodude, and he started out with Charizard. Luckily, the levels were all made even, so we were all of Lv 50. Before I could get in an attack, the other guy decides to use a mega stone to get Mega Charizard X. You know, the black one, that's part Dragon-typing... I was like "really, dawg? Look at what I'm using!"

...But neither of us knew that that day, my Geodude was in for some all-you-can-eat Charizard buffet.

So after the change was done, my Geodude got in a Rock Tomb which is Roxanne's TM that I taught to him. It still did a surprising amount of damage! The guy retaliated with Flame Charge, a Fire-type physical move, which did nearly a quarter of damage to my Geodude. I didn't had many options, so I decided to go with another Rock Tomb. The guy did another Flame Charge, which critted my Geodude, bringing him to red health, to which I responded with ANOTHER Rock Tomb!

His Charizard could've dealt the final blow there, but - and I dunno what he was thinking - he thought it would be fun to use Fire Fang, a move with 95% accuracy...

...And he missed, and Geodude finished him off. My Geodude didn't only face a Mega Charizard and live, he took it out.

Afterward his team, consisting of all legendary Pokemon other than another Charizard, whiped the floor with me because I was no match for him, but I cannot believe that my little inexperienced Geodude was able to take out the Fire/Dragon dual-type Mega Charizard X. I could only imagine the look on that guy's face. ^^'

This was probably some 10 year-old who had just as little experience as I have with competitive battling, judging by the Pokemon he was using, lol. Still, you can probably understand how proud I am of my little piece of data that is Cobble the Geodude.

Sewaddle : That is amazing! A little and inexperienced Geodude winning against a Mega Charizard X. Wow, very impressive!

Rock Tomb is pretty good early on and I find it surprising that you managed to knock a Mega Charizard X in four hits with a Geodude (Charizard's defenses are a bit low anyway). Would've been easier if your opponent used Mega Charizard Y. Fire/Flying types love being hit by rocks. Using both Flame Charge and Fire Fang is kind of dumb if you ask me. I think you are right about your opponent having little experience.

I love stories where the underdog prevails! To be fair though, if your opponent hadn't mega evolved his Charizard, you probably would have one hit KO'ed him as Rock Tomb is 4x super effective against Charizard. Either way, it is pretty amazing when a measly geodude pulls off an upset against the might Mega Charizard. 

I can't even imagine how frustrated he must have been, me personally, I probably would have broken a key or two. Good job, must be one of the biggest upsets to date in the Pokemon world.