Don't know if these have been said but here goes:
The pokemon who perished at bell tower were Jolteon, Flareon and vaporeon all revived as legendaries.
The strongest move can only be delivered by the one and only shuckle
Mawile is the only steel type to become fairy with klefki and when mawile has mega evolved, he has the strongest attack in the game (going over the previous limit)
The Pokémon who perished in the Brass Tower fire were never confirmed to be them, that's just stupid fan speculation.
To be precise, the maximum possible can only happen in a Double Battle, while holding a Metronome, with five Rollout Hits, a Defense Curl to power Rollout, a maximum Defense (+6) before Power Trick is used, Power Trick being used, it getting Huge Power or Pure Power through Skill Swap, it having a Critical Hit, the opponent's Defense minimizec (-6), a Helping Hand bonus, Level 100, a Nature boosting Defense, Flower Gift active, 31 Defense IVs, and maximally EV'd in that Stat, and the opponent being a Level 1 Yanma with a Defense lowering Nature, who has no Defense IVs or EVs, and then Rollout is used.
You just proved yourself wrong, as Mawile and Klefki share the same Typing.