I know I've already posted in this thread, but I've got to share the story of Brainstorm, the Dragonite-smiting Espeon from my HeartGold Blazelocke run (Sidenote: I often do runs where I have a single abnormal Pokemon that replaces my starter or an early catch and must be kept alive at all costs. In this case it was a Torchic).
I went into Lance not entirely sure about my plan. I had Blaziken, but ol' Rodimus was limited to Shadow Claw for damage, and my Heracross had become the latest victim of Destiny Bond during the fight with Karen, so realistically I had four Pokemon: Espeon, Ampharos, Gyarados, and Ho-Oh.
Things started off well, Nimbus tanked a Waterfall from his Gyarados and flash-fried it with Discharge, as to be expected, and then out came the Lv.50 Dragonite. I had no plan for the Dragons beyond "Hope Otachi can survive and Ice Fang to victory", and that wasn't looking so hot, as the first hit of Outrage did over half damage while her response only got it down into berry range.
It got a three turn Outrage, which I Potion-tanked Otachi through, but he snapped out of confusion without hitting himself once. FOrtunately the second time he only got two turns, and hurt itself immediately. It then snapped out of it right after that, but set up Safeguard, giving Otachi room to punish with another Ice Fang.
I'd hoped the next Dragonite would immediately follow, then I'd know it was the Thunder one, but he sent out Aerodactyl instead, to which Nimbus barely survived a Rock Slide to get another Discharge one-shot, drawing out the next Dragonite. I was super-duper certain that he wouldn't send out the Thunder Dragonite against an Electric type when he still had the Blizzard one, so I sent out Otachi... and she promptly took a Thunder to the face and died.
At this point I panicked and sent out Ho-Oh, but after it tanked another Thunder in the process of using Fly, I realised what I was doing and switched into the hero of the hour, Brainstorm.
Brainstorm started strong, dodging a Thunder and getting a decent hit with Psybeam, and Lance derped and used Thunder Wave, paralysing both parties. He Full Restored immediately after that, due to the combined damage from Fly and Psybeam, letting me get another Psybeam off, but then the Dragon Rush Spam started. And not only did the first attack nearly kill Brainstorm, but it flinched him too. Thus began another round of Potion-tanking, until after two turns, he missed, and I got another Psybeam in. He then went for Thunder Wave again, but it was too little, too late. Another double-paralysis, and Brainstorm ended the second Dragonite with a perfectly-timed Hyper Beam.
He sent out his Charizard in response, because Shadow Claw, and while I wanted to meet him Starter-to-Starter, Rodimus didn't want to take an Air Slash, so I sent out Ho-Oh to tank while I healed up Brainstorm and Nimbus, and Ho-Oh itself. A Brave Bird and a Fly or two dealt with the lizard, and brought in the last Dragonite. My immediate response was to send out Nimbus, since Discharge's 30% paralysis chance and Thunder as a big gun were probably my best bets.
A critical Dragon Rush scuttled that plan.
Alright, not to worry, I've got a Ho-Oh in-back, Oracle's monstrous Attack and Defense will see me through.
Yeah, no. Thunder Wave for his first move, which fully paralysed Oracle on every single turn, while Dragon Rush did over half HP. I tried Potion-tanking for a third time but he got a crit and ended Ho-Oh too. Oracle died without getting a single attack in.
Brainstorm went back in, and at that point my You Say Run moment kicked in because he was on fire.
The first Psybeam got the confusion chance, and it proceeded to beat itself up while another Psybeam took it into the danger zone. Lance healed it, before Brainstorm could finish it off with Swift, but then vengeance for those two crits and the paralysis kicked in and he got confused again. It hurt itself for a third time, and I threw caution to the wind one last time. Death or glory. Heaven or Hell.
Brainstorm used Hyper Beam...
... And defeated a second Dragonite, single-handed, without taking a single point of damage.
Did I mention he was Jolly? Because he was Jolly. This is why I don't look at Natures as anything but character flavour in a Nuzlocke. Because sometimes an Espeon with reduced Sp.Atk can take down two Dragonites single-handedly.
Brainstorm the Espeon
Lv.5- Lv.64
The hero of the run, without a doubt.