Small tidbit, but there is a 2nd comet shard found in Dragonspiral tower on BW2. on floor 7F needing the dowsing machine. (There is one on 6F too which is listed)
I don't know if this has been mentioned before but, the Sinnoh mentions that Kanto ( and logically Johto also ) are to the South of Sinnoh. But, Sinnoh is shown to the south of Kanto/Johto in pokearth.
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