Out of that group (and ignoring EFB, who I already voted for), I'd say Walt and Jesse look like the most deserving. They just had such a big impact on their game, not to mention they're good characters anyway. On the other hand, I'd probably rather see Mega Alolan Exeggutor; it's such a silly idea for a character (even by the standards of the MS Paint game), but its gimmick actually ended up making it a decently creepy threat. (Then again, I just prefer silly characters in general.)
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Congrats to 2017 Guru champ BKSheikah!

B8 Hunger Games XXIV: All-Stars - Somebody once told me

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