I went in to the Elite Four with a full set of six. I wasn't planning to do very well (all my pokemon were under level forty five) and so was going to start training by just fighting until failure, this was my first round.
I went in, with Red Gyarados as a lead, as I was training him at the time. I used a dragon dance, and took out all Will's pokemon with Ice Fang/Crunch. That was fun.
Next was Koga. Two Dragon Dances against a crappy ariados, got rid of my poison, then swept with a mixture of aqua tail and ice fang. Somewhat surprised at this point.
I went up to Bruno. Dragon danced 4 times (hitmontop kept using counter), swept with Aqua Tail. It started to occur to me that I was sorta kicking ass. I'd still only used ONE POKEMON.
Karen. Dragon dance twice, 2HKO espeon with aqua tail, Ice fang and aqua tail took care of the rest.
HOLY **** I MADE IT TO LANCE ON ONE POKEMON. Who uses dragon types, and I have ice fang. I figured I'd switch it up, I started with Feraligatr. he got owned. Sent in Ho-Oh. Also owned. Gave up, switched back to Gyarados. After a Max elixir, two dragon dances, and a hyper potion, swept with Ice Fang.
What was his level? 43 or 42 at the start, 45 at the end.
YES A LEVEL 45 POKEMON SWEPT THE ELITE FOUR.