Adolin killing 20 dudes without a shardblade was hype as hell. I like how he went into the situation noting the typical "it's actually not realistic that one guy can kill more than couple guys alone" thing so his goal is only to delay until backup arrives... and then he just kills everyone anyways
Pattern being the spy would be awesome. I suspect the answer is still Formless / another personality and Pattern is just working with that personality, as he sees all aspects of Shallan as his Radiant.
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The batman villians all seem to be one big joke that batman refuses to laugh at - SantaRPG