Hwang, you wanted a Scramblemon for a Platinum challenge, around an 8-9/10in difficulty. Therefore, I give you… (Drumroll please…) Healer the Blissey!
Since you are playing Platinum, you can no longer receive a free Happiny egg from a hiker in Hearthome City… so you are going to go to Route 209 or 210 (south) to catch a lovely Chansey! Is that not amazing?
However, the challenge requires that you start from a HAPPINY, so catch a Chansey, and box it. While you are at it, catch a male Clefairy, and make sure it knows Metronome. Box it as well. Let me guess: you think this is like King Serperior’s Random the Togepi challenge, right? Well, you are not TOO far off…
Okay, just so you know, in order to breed for a Chansey, you need the Luck Incense. It is found in the basement of the Ravaged Path. I forget exactly what you need to get it, but just to be on the safe side, bring along a Pokémon with Surf and Rock Smash.
Once you have all of that, breed a lovely Happiny egg that you will keep in your party for QUITE a long time. Because you started your journey in Twinleaf Town, you want Happiny to start its life in there too, so FLY TO TWINLEAF (alternatively, walk to Twinleaf AFTER boxing the Egg). Happiny MUST hatch within your bedroom. Have fun with that!
Name Happiny “Healer” then put a MALE sign after. To make it more realistic, name it “Healer {male sign}” as that would be the full 10 characters, and it would put the male sign right beside the female… kind of. It believes that it is a MALE, and it is GAY. It SHOULD have Metronome from Clefairy… and that will be your ONLY attacking move for quite a while, and just to make things harder… Healer cannot learn Toxic.
Happiny, being gay, loves other men. However, it realizes that all other members of the Blissey family are female, so it cannot mate with them. Whenever Happiny is sent out against a Male Pokémon, use Attract, and then use Charm until he is at -6 Atk. It finds a partner in Barry (I know, it makes no sense) and challenges him for her/his love (Always have to solo Barry). However, if Barry has a fighting-type, Healer has to switch to Ambiguous as it has a type advantage over Fighting types.
Healer knows his/her weakness for Fighting-types, and cannot attack them at all. Moreover, it wants to improve its self-confidence, so have it solo Maylene’s gym. It may not faint more than 5 times, or you have to soft-reset.
In Canalave City, Healer successfully KO’s EVERY ONE OF HIS POKÉMON except for his STARTER, which KO’s Healer, and forces him/her to evolve into a Chansey, as it’s much stronger, and can prove her/his love for him. Again, you are doing this with ONLY Metronome as an attack. It may fight against a Fighting type Pokémon in this fight.
Chansey may have one more damaging attack; it depends on its level, however. If it evolved at an odd level (e.g. 11), it must be physical. If it evolved at an even level (e.g. 10), it must be physical. You may now replace both Attract and Charm with Softboiled and Minimize. If you choose NOT to have another damaging Attack, it must learn Sing.
Chansey now has a hatred for Fighting-types, and has to solo ALL Fighting-types that it sees, and if your Ambiguous evolves into a Gallade, and Chansey fights a Double Battle with it, Gallade must be KO’d before Chansey can damage the opponent, and neither Chansey nor Gallade may switch out.
In order to evolve into a Blissey, Healer has to do four of the following:
As soon as you evolve your Chansey into Blissey, it faints in battle, and needs to be taken to the Pokémon Center. When it is healed, it is no longer gay; it is straight. So, remove the male sign in Healer’s name, and your Blissey may not fight any Male Pokémon unless they are owned by “BOSSES” (Gym Leaders, Team Galactic, Elite 4, Battle Frontier, and Rival). Blissey no longer HAS to solo Rival, as she is over her crush.
You may no longer use healing items that affect HP on any of your Pokémon except for Healer; you must heal them after battle with Blissey’s Softboiled. If any of your Pokémon faint, however, you may still use a Revive. Just because I am feeling nice, you are allowed one Full Restore PER Opponent Pokémon in BOSS battles (see above list), but it has to be used IN BATTLE, while Blissey is out. If Blissey faints, you may not revive it; it must be fully restored at a Pokémon Center. Exceptions are when you are fighting the Elite 4, where it may only be revived by a Max Revive. If Blissey faints, you cannot restore your Pokémon’s HP with items.
Blissey must solo Aaron’s Heracross, Bertha’s Rhyperior, Flint’s Infernape, Lucian’s Gallade, and Cynthia’s Lucario. If it faints in any of these solos, you must trash 10,000 Pokédollars worth of items out (buying price, so a Nugget that sells for $5,000 is worth $10,000)