Final update:
I Finally Defeat the Elite 4 Yesterday at 18:49:48 O'clock (Europe) Precisely. I couldn't get on internet so also not pokecommunity :(
Aaron:
Dustox: OHKO with Rock Slide
Heracross: 2HKO with Rock Slide
Vespiquen: OHKO with Rock Slide
Baeutifly: OHKO with Rock Slide
Drapion: 2HKO with Rock Slide
Bertha:
Quagsire: 2HKO with Dark Pulse
Whishcash: 2HKO with Dark Pulse
Hippowdon: 2HKO with Dark Pulse
Golem: OHKO with Earthquake
Sudowoodo: OHKO with Earthquake
Flint:
Rapidash: OHKO with Rock Slide
Lopunny: OHKO with Rock Slide
Steelix: 2HKO with Dark Pulse
Drifblim: OHKO with Dark Pulse
Infernape: 2HKO with Rock Slide
Used a Hyper Potion
Lucian:
Mr. Mime: OHKO with Dark Pulse
Girafarig: OHKO with Dark Pulse
Medicham: 2HKO with Dark Pulse
Bronzong: 2HKO (and 1 miss) with Dark Pulse
Alakazam: OHKO (and 1 miss) with Dark Pulse
Used 1 Hyper Potion
Cynthia:
Spiritomb: 2HKO with Rock Slide (nothing is super effective on it)
Gastrodon: 2HKO with Rock Slide
Lucario: KO'ed Mountain and i used a Max Revive. 2HKO'ed with Rock Slide
Milotic: 2HKO'ed with Rock Slide
Roserade: Got Mountain on red lives so i used a Hyper Potion. OHKO'ed with Rock Slide
Garchomp: Should be 3HKO'ed with Dark Pulse but i missed 2 times and Cynthia used a full restore and it had a sitrus berry, so it bacame a 6HKO
Pictures:
https://img94.imageshack.us/gal.php?g=hpim1159.jpg
Sorry for the very bad quality, but my camera is not the best and im doing it in real