As one would assume, I beat the E4 quite easily. OHKOed all of Caitlin's and Shauntal's pokemon with a Spell Tag boosted Shadow Ball from Chandelure.
OHKOed all of Grimsley's and Mashal's pokemon with Sky Uppecut and Brave Bird, respectively.
My Lv. 71 Blaziken outsped Hydreigon and OHKOed it with a SU.
Destroyed Aggron with SU.
Finally outsped Haxorus but didn't do enough with SU to OHKO. Not that it would've anyway (bloody focus sash). Haxorus used Dragon Dance. Haxorus was now faster than me but luckily he used another Dragon Dance and there goes Haxorus.
OHKOed Lapras with yet another SU.
I used SU against Druddigon but it didn't faint. It attacked me but did hardly any damage. Iris healed Druddigon and I replentished the PP of SU. I used another SU and got a crit!
Her last pokemon was Archeops. It outsped me and KOed Blaziken with Acrobatics -_- (I wasn't expecting that to happen). I went into Flareon to Max Revive Blaziken. Once Flareon was gone, I switched back into Blaziken. Archeops used Acrobatics and I only just survived with 8 HP. Blaziken used SU and won the battle!
I got really lucky with the Sky Uppercuts. They all hit.