My updated team, about to battle Elesa:
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Frosty the Dewott Lv 29(Revenge, Fury Cutter, Water Pulse, Razor Shell)
Not much has changed for Frosty so far. He always gets me out of tight spots - two examples. First was against Cheren, all of my Pokemon were weakened after grinding and I'm not sure why I didn't heal before battling him. Regardless, I thought I could win pretty easily. All of my Pokemon fainted, except Frosty, by the time he sent out his second Pokemon, Servine. Frosty fury cut his way to knock out Servine ultimately on his way to victory with only 1HP left.
Second example is against N. Exact same position, didn't heal after Desert Resort and stuff, and every single Pokemon was in red health. I sent out Frosty first, using Focus Energy, and managed to critical hit every single turn, and I somehow beat him without harm (it's not so much a tight spot, but it could have been if he had knocked Frosty out)
I don't think I'll be using him against Elesa, unless necessary.
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Rosie the Swoobat Lv 28 (Confusion, Thunder Wave, Air Cutter, Assurance)
I love Rosie. She hardly ever loses. She is just wonderful... :3 I haven't battled with Rosie since she learned Thunder Wave, and I can't wait to use her soon.
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Misty the Simisear Lv 29 (Bite, Yawn, Rock Tomb, Flame Birst)
I evolved Simisear, despite not usually evolving my Pokemon with stones until later in the game, because I think Simisear is a pretty cool girl and seh doesn't afraid of anything. She is going to be my sweeper against Elesa with his Rock Tomb.
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Petulia the Cottonee Lv 28 (Growth, Leech Seed, PoisonPowder, Giga Drain)
Petulia is so fun to battle with. I can't quite remember why I taught her PoisonPowder over StunSpore, but I don't mind. PoisonPowder, Leech Seed, Growth, Growth, Giga Drain (to restore health that might have been lost...) and usually I win within a few turns. :)
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Pikachu the Scraggy Lv 28 (Sand Attack, Faint Attack, Brick Break, Work Up)
Not sure why I named one of my newest recruits Pikachu. But I love him regardless. He spent a lot of time in the Desert Resort castle thing just battling Yamask and Sandile while he levelled up. I caught him at level 16 in the desert route, as oppposed to the desert resort, so I had to spend a little extra time grinding. I don't mind though, he's such a cool guy.
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Hugh the Emolga Lv 28 (Charge, Shock Wave, Pursuit, Double Team)
I thought using an Emolga would be fun. Despite being the fourth member to be weak to Rock types, I don't mind. It's only an in-game team, and I'm trying to make this run-through a realistic sort of run, where I catch Pokemon I'd catch IRL. I was just running through some grass and all of a sudden OMGA EMOLGA. It was an 'in the moment' decision. Not sure how effective Hugh will be later in the game though.
I'm very excited for my team, despite many common weaknesses, and maybe I'll catch some other Pokemon to counter these. I will be looking to maybe add a Drilbur and/or Axew to raise. If so, it will be the first time I've ever raised more than six Pokemon, which will be exciting for me.
As I was writing this, I battled Elesa. Not as planned though. Misty only managed to damage one Emolga before fainting (darn critical hits), and Scraggy had fainted before the battle had even started. Out came my newest member, Hugh the Emolga, who was in red health, and managed a few Shock Waves to knock out the male Emolga before fainting. I realised I was in trouble at this point. Out came Petulia my Cottonee. But not for long, she managed to poison Zebstrika, after three consecutive misses, but was knocked out with Flame Charge. This left me with Rosie and Frosty - both weak to Electricity. I sent out Rosie first, who managed to land one Confusion on Zebstrika before falling victim to a critical Volt Switch.
My last Pokemon, Frosty, the match winner in tight situations came out. Frosty had full health, luckily. I sent out a Water Pulse in the hopes of confusing Emolga, which it did, but Emolga volt switched. Zebstrika sparked Frosty and Frosty was unable to move because of Paralysis. Frosty barely had any health left. Zebstrika used another Volt Switch, and Frosty somehow survived, and used Razor Shell on the Emolga to knock her out.
Luckily Elesa is an AI, as Zebstrika decided to use Flame Charge, with left me with 5HP, but Frosty was paralysed and couldn't capitalise on this opportunity to win. Elesa healed her Zebstrika, and Frosty managed to land a critical-hit Razor Shell to leave Zebstrika with barely any health left, and the poison finally knocked Zebstrika out, winning me my fourth gym badge!
I am so thankful for Frosty, I love Dewott now. <3 I am also in love with Petulia, because of her poison powder.