Wow I'm getting these way faster than the other Scramblockes i did... anyways.
Soul Silver
1. Crobat. Must solo every ice type including Pryce. After Icy Path this is nullified. However, it cannot learn Steel Wing via TM.
2. Heracross. May only use one move until it switches out.
3. Eevee. Can only evolve into Vaporeon or Flareon. Must solo Clair.
4. Pidgey. Must learn 3 moves learnt by the other early game flyers.
5. Bellsprout. Whenever opponent uses a grass or poison attack, Bellsprout must be switched in. Must have exactly two STAB moves, one poison, one grass. If aquiring a leaf stone, it must be from the Pokelathlon, using points Weepinbell helped get.
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Black
1. Munna. Hypnosis and dream eater are the only STAB moves allowed. Psychic status moves are not allowed either.
2. Gothita. Cannot use the same move twice in a row.
3. Archaeops. If it is out sped by any opposing Pokemon, it must switch out immediately, and cannot be switched in again until the Pokemon is killed.
4. Fraxure. Must be caught as a Fraxure. Must evolve at level 50. Must know shadow claw.
5. Darmanitan. Can't use BP70 or over moves unless in Daruma mode. Can't KO any Pokemon unless in Daruma mode. Must learn psychic, confusion, <70BP move and a filler. Must solo Caitlin, 10 fire and psychic trainers, and 25 fire and psychic wild pokemon to nullify the restrictions.
6. Maractus. First one I find. Water Absorb = must correctly switch it into 5 Water-type attacks trainers before it can use any Grass-type moves, and must solo one of the final three gym leaders. Chlorophyll = it may only use moves that are on the top row of its moveset during battle.
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White
1. Bisharp. Cannot use an attack against psychic types until I beat Caitlin. Must solo 3 fighting type pokemon from trainers.
2. Solosis. Can only use attacking moves.
3. Darumaka. Must solo every Basculin seen. Cannot battle with Concelderps. Must solo Marshal.
4. Panpour. Cannot be used against Chili.
5. Blitzle. Whenever I use a damaging attack, it must be the worst type match up (except immune).
6. Joltik. Until Joltik evolves it can only know Ariados' moves from its Gen II movepool. To evolve, it must solo Skyla and 10 bird trainers. Must ASAP learn Electroweb, Electro Ball, Poison Jab and a filler. It must solo Ghetsis' Eelektross, N's Archeops and Alder's Volcanora.
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Oh yes I forgot to mention that I can trade between Black and White and I can trade things from Diamond to Soul Silver, as long as they aren't too rare/hard to find. This includes National Dex stuff from Diamond which I have access to.
A couple of these probably fit into the 'just plain annoying' category, but I'm not going to worry. Keep 'em coming in guys, and if there aren't 12 different people that commonly post here, feel free to give me another one.