Whenever Lunar Insight is cast, the client counts all the different mana values among permanents controlled by ALL players, instead of counting only the ones belonging to the spell caster.
Lunar insight I believe is incorrectly coded. It is drawing cards seemingly equal to total mana value on nonland permanents controlled by the caster, as opposed to number of different mana values. In this example, the opponent controlled two creatures and drew 6 cards.