Some combat data about my Amiibos:
I decided to have the four of them battle it out in a little tournament and the results are quite amusing. The first set of fights was done on the boxing ring omega, 2 stocks, no time limit, no items. If the winner managed to 2stock their opponent, they got 3 points, and if it was a 2-1stock result the winner received 2 points, the loser 1 point.
The finals were done on Final Destination, 2 stock, no time limit, no items. Best 2 out of 3 fights style.
The bonus round was done on big battlefield omega, same rules and free for all, obviously.
Qualifying rounds:
Bowzilla vs Lucy - 2/1
Peachy vs Zeldy - 0/3 (Zeldy 2stocked Peachy)
Bowzilla vs Peachy - 2/1
Lucy vs Zeldy - 1/2
Bowzilla vs Zeldy - 1/2
Lucy vs Peachy - 2/1
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Results:
Name Win/Lose Pts 2stocks
Bowzilla 2/1 5Pts
Lucy 1/2 4Pts
Peachy 0/3 2Pts
Zeldy 3/0 7Pts x
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Finals:
Match 1
Bowser(47%) KOs Zelda(104%)
Zelda fumbles Farore
Bowser wins.
Match 2
Bowser(91%) KOs Zelda(152%)
Zelda(34%) KOs Bowser (167%)
Incredibly close whiff of both Fsmash AND Bair at the same time, if either of those had hit, the match had been over!
Zelda(94%) KOs Bowser(185%)
Zelda wins.
Match 3
Zelda gets Bowser up to 81% without getting hit!
Bowser retalliates by getting Zelda up to 98%, taking only minor damage!
Zelda(94%) KOs Bowser(164%)
Bowser(33%) KOs Zelda(131%)
Bowser(143%) KOs Zelda(169%)
Bowser wins.
Though Zelda has more points from the qualification rounds, Bowser wins the finals.
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BONUS ROUND! FREE FOR ALL!
1st Bowzilla - 3KOs - 1Falls - KO'd everyone once.
2nd Peachy - 3KOs - 2Falls - KO'd everyone once.
3rd Lucy - 0KOs - 2Falls
3rd Zeldy - 1KO - 2Falls - KO'd Peach once.
This was especially surprising since PEACH, the absolute and definite loser from the 1v1 tournament almost won the bonus round. Bowser knocked her out at ~180% while she only had ~120%.
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Some background on how those Amiibo were trained and how they behave now:
Zeldy was my first Amiibo. I trained her mostly myself, using pretty much all kinds of different characters across the board, whichever I found interesting to play regardless of my actual ability to play them correctly. Up until Lv35 or so, at least. From there on I kept using my two 'best' fighters, Lucario and Bowser, with a focus of about 80% on the latter. Also, I played highly aggressive at all times, not giving her a second to breathe. Mostly because I didn't want her to be a ranged camper, so I punished every single sideB as best I could. This led to her perfecting spot dodges and perfect shielding. She became a highly defensive fighter who punishes openings, but doesn't spam sideBs as much as you'd expect. She does run to the edge of stages most of the time (which is really awkward on the Bridge of Eldin and Wii Fit Studio stages) and waits for you to engage, but if you stay at range she sort of closes in on you, still in a rather defensive manner. Now it's incredibly difficult to get hits in on her, but she usually doesn't follow up successful hits. She usually feels content with just landing a devastating blow and then retreating into her turtle-esque defensive style until the next opportunity arises. I personally can take 1 stock off of her on good days. In 3stock games.
Peachy was my second Amiibo. For her, I tried to do something different and trained her in 1v2s exclusively until she hit 50. Either something went terribly wrong with that, or Amiibo AI simply sucks at handling multiple opponents, because as you can see from the 'tournament' results, she's not a great fighter in 1v1. I can actually beat her, despite her inhuman reflexes and damage/defense advantages, when I'm playing my 'main' main and focus properly. Not super consistently, but more than 50% of the times, which I'd say is consistent enough. Strangely, she didn't pick up -any- of the techniques I used when 'showing' her how to play peach. She doesn't instant-float, she doesn't pluck turnips at every possible chance, she never float-attacks while carrying turnips, though she does use Fair a lot to space, which is great. She's also relatively apt at catching thrown turnips to re-use them multiple times, but she doesn't seem to react to the stitch-face at all. Quite honestly though, I can't really describe her playstyle. She's an exemplary oddball, likes to hang out motionlessly in mid-range where some attacks can actually even hit her during her random idle moments, doesn't shield much at all and most likely tries to interrupt slow attack animations with her own, faster or well-timed ones. Though evidently, she can handle fights with more than one enemy better than the rest, I'd still not call her very good at it. I'm likely going to reset her soon.
Bowzilla is the Amiibo that makes me proud. He turned out amazing after I was initially scared that he'd open himself to punishment as much as the stupid lv9 AI with its constant fire breath spam, even at mid-low ranges. While he still does it sometimes, it's bearable. I trained him using a variety of AIs and my other Amiibo until he hit lv20, from there trained him myself exclusively, using Bowser most of the time, but Rosalina, Lucario, BJr. and a few others as well. From lv40 on I only fought him using Bowser myself, and he picked up a lot of my better habits. Such as shorthopping Fair, using Dair in unpredictable moments to stall his way around Utilts and Upsmashes, short hopping Breath for more safety, Fortress OoS and so on. While fighting him I alternated between extremely defensive, punish-heavy and semi-aggressive, baiting playstyles. He now turned out to be highly passive-aggressive, threatening opponents with his pure proximity while spacing properly with Ftilt, Fair and Breath. He's quite brilliant at dueling and his (annoying) offense/defense advantages made it quite impossible to win 'fair' fights for me. Though I can get one stock off him more often than with Zeldy.
Lucy is the Amiibo I'm kind of unsatisfied with. He's not even that bad at anything, he just turned out incredibly predictable. I find it much too easy to bait out his DT and dash attack. I trained him playing defensive most of the time, so he'd turn out as a rushdown-esque fighter, and that part worked. You see, I tried to avoid him becoming a sphere-spamming duckface, successfully. But yeah, while I didn't beat him after he hit 50, I had a ton of very close games, and many of those only happened to be close because he feels so very limited in his creativity, using the same approaching/defending mechanisms most of the time. And he doesn't want to learn! No matter how many times I shield his dash attack and grab-combo him afterwards, he just won't stop doing it.