ok time to finally try to work all this crap out again
[Priscilla] Minccino ♀
Ability: Technician
Signature Attribute: Crossbreed
Description: Somewhere generations back in Priscilla's bloodline,   despite taboo and the usual logistics of Pokémon breeding, her   ancestors somehow crossbred with Dragon-type Pokémon. The genes remained   dormant at first, such that this abomination went unnoticed for a long   while until finally Priscilla was born. The latent dragon genes  finally  awoke, and she was born unlike any of her predecessors,  freakishly  exaggerated in size and bestowed with elemental properties  and abilities  like none of her kind. She was duly shunned by her  relatives and cast  out, regarded as a freak and an abomination by all  who came upon her.  Despite being captured by the Asber league and  finally accepted by her  trainer, the emotional scars of this  persecution have yet to fade.
Effects: Priscilla is granted the Dragon type, thus changing her   typing to Normal/Dragon. Her height and weight are both double that of   the rest of her kind. Being considered a freak and an  abomination for   her entire life has  made Priiscilla cold, aloof and highly suspicious    of any form of praise  or friendly gesture, as well as unable to    empathise with or pity  opponents. Thus the moves After You, Attract,   Baby-Doll Eyes, Captivate, Charm, Encore, Fake Tears, Flatter, Helping Hand, Hold   Hands, and Play Nice have no effect on her, though nor is she able to   use any of those same moves herself. Taunt and Torment remain in effect   on her for one action longer than normal. Finally, her increased bulk makes her less nimble than an ordinary Minccino, giving her an inherent -1 to her Speed stat.
Movepool changes:
+ Dragon Breath, Dragon Dance, Dragon Tail, Twister
- After You, Attract, Baby-Doll Eyes, Calm Mind, Captivate, Charm, Dazzling Gleam, Encore, Fake Tears, Gunk Shot, Helping Hand, Last Resort, Work Up
[Logan] Abra ♂
Ability: Inner Focus
Signature Attribute: Big Hat
Description: Logan wears 
an enormous wizard's hat, with a brim wider than the height of its peak, such that it droops down and covers his eyes. The hat is too huge and heavy to snatch away with Thief, Covet, or the ability Pickpocket or swat off his head with Knock Off, and is too precious for him to offer up in exchange for his opponent's held item should they attempt to acquire it with Trick or Switcheroo.
Effects: Logan's concentration is increased immensely, reducing   the duration of Taunt or Torment by one action, causing him to recover  more quickly from confusion and attraction, (i.e. 6% fail chance   reduction per action he passes a check), and increasing the final damage   of all his special attacks by 1%. His eyes are also completely covered   by the brim of the hat, meaning no moves requiring eye contact can   effect him (or be used by him, for that matter), unless the foe using   them is close up enough to peer under the brim. However, this also means   the base accuracy of all his moves is decreased by 10% due to the   difficulty of seeing his target, and the weight of the titanic piece of   headgear reduces his base speed to 50.
Flavour: Logan is an introverted sort, much preferring to lose   himself in thought than pay attention to others around him.   Unfortunately, this led to him being considered something of an oddball,   his presence often drawing the unwanted attention of staring eyes. Try   as he might, he found it impossible to concentrate with so much ogling   going on. Fortunately, his trainer found a solution; an enormous brown wizard's hat,   with a brim much wider than the peak is tall, more than wide   enough to block his ears and completely obscure his face. With it on,  no  amount of staring, noise, or snide gossiping could distract him!   However, needless to say having a huge, heavy hat weighing him down and   blocking his view is not without drawbacks.
[Solaire] Helioptile ♂
Ability: Dry Skin
Signature attribute: Praise the Sun!
Description: Solaire becomes irrepressibly jolly and upbeat whenever  exposed to the sun, 
lifting his arms into the air at his sides and  standing on tiptoe to salute it whenever it starts shining brightly. He  will take every opportunity to stare directly at it in admiration  whenever not busy fighting, and as long as its benevolent rays shine  upon him, nothing is able to ruin his mood. Conversely, when it's dark  and gloomy, he becomes incredibly depressed until his beloved sun  returns.
Effects: Solaire's Dry Skin is nullified. In bright sunlight, his special attack and speed are boosted by one level independent of  all conventional stat changes, while his accuracy is reduced by one  level. (Thus during bright sunlight his special attack and speed  range from -5 to +7 and his accuracy ranges from -7 to +5). The base  power of his Return is also increased by 10, and he becomes unable to  use Frustration. In rain, snow, hail, sandstorm, or in an inherently  dark arena, his special attack and speed are reduced by one level (also  independent of all conventional stat changes), the base power of his  Frustration is increased by 10, and he becomes unable to use Return.
Movepool changes:
+ Morning Sun, Solarbeam, Sunny Day
- Iron Tail, Rain Dance, Sandstorm, Surf  
Flavour: 
The sun is a wondrous body, like a magnificent father. If only I could be so grossly incandescent...
Almost all Helioptile adore the sun, it being the source of their  electrical power and thus fundamental to their very lives, but Solaire  takes it further, regarding the sun with an almost religious fervour. So  dear is the sun to him that its rays fill him with jubilation, and he  even goes so far as to stare directly at it whenever he is able, to the  detriment of his vision.
Signature Move: Sunlight Spear
Type: Electric
Class: Special
Base power: varies
Base energy: 7%
Accuracy: 100%
Target: Single
Usage gap: 3 rounds
Description: Solaire holds his hand aloft, forming a glowing lance of  electricity in his palm before tossing it at his target like a javelin.  The spear will be shorter and less bright if the sun isn't out, and if  it's raining, snowing, hailing, there is a sandstorm, or the arena is  unlit, it will fizzle out in his hand.
Effects: in bright sunlight, Sunlight Spear has 100 base power and other  targets standing within a few feet of the one struck recieve 3% splash  damage. Without any weather effects in play, it has 50 base power and  deals no splash damage. If rain, snow, hail, or sandstorm are in effect,  or the arena is foggy, overcast, or without natural light, it does  nothing. Whatever the case, Solaire's special attack is reduced by two  stages until Sunlight Spear's usage gap is over; if he uses it again  during the same round it becomes usable again, the reduction will linger  and stack.
Flavour: through his religious observance of the sun, Solaire has taught  himself how to focus its power into forms more potent than the rest of  his kind can, and taken it upon himself to weaponise it to vanquish foes  in its name.
(The inability to obtain Logan's hat with Trick and Switcheroo seems a little shakily-justified to me, but I think it's best not to get into the gross logistics of swapping signature attributes for held items. Espeically since this could end up with Logan having two held items at once and/or his foe having two signature attributes at once.
Also I gave Priscilla Seed Bomb back to give up Last Resort as suggested, because she's now losing about three times more moves than she's gaining.)