>>42237579Sidney has Shiftry and Cacturne to shut down most of Wallace's Team as well as Sharpedo for a resisted matchup, in addition there is a general lack of strong counters to Dark-Types on Wallace's Teams, Luvdisc is too shit to counter anything so his only options are the underwhelming Disarming Voice on Milotic or the Dazzling Gleam on Tentacruel.
Supposing he was able to deal with that then you have the issue of Phoebe where the only Pokemon that could handle her team would be Gyarados and even then Phoebe's Dusknoir and Sableye can counter it with Thunder Punch & Power Gem respectively, that's to say nothing of her Post-Game team which includes Thunderbolt Mismagius and Energy Ball Chandelure in addition to the previous two.
Glacia's team is probably the one he'd have the easiest time dealing with since Water-Types resist Ice-Types and unlike her RSE Team, Glacia ditched her Water core of two Sealeo and a Walrein for two Froslass and Walrein, that being said however her post-game team also incorporates an Abomasnow which would fuck up most of Wallace's Team with his best bet, Tentacruel probably struggling to get through unscathed.
Drake is probably not as hard as Sidney or Phoebe for Wallace since 2/3 of his post-game team has Ice-Type moves and even among his regular team 2/5 have Ice-Type moves. The main trouble would be Kingdra who would post a significant threat to Wallace since once again only Tentacruel could really pull through for Wallace. Drake's Post-Game team would also give Wallace considerably more trouble thanks to reducing the number of quad Ice-Type weaknesses from four to three and adding Dragalge to deal with Tentacruel.
