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This is something I approve of, however, if it is the same old Rattata-a-like, Pidgey-a-like, Caterpie-a-like for the first 3 hours, plus caves filled with annoying creatures suspiciously like Geodudes, Zubat or Machops, then it's pointless.
In fact, any departure from the tired formula this game has been shitting out would be welcome. Hell, it wouldn't do them any harm.