It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
Tracking return-to-player percentages, feature frequency, and your own comfort with variance will lead to better decisions about which rounds to accept and which to skip
In Commander, for instance, its only used in around 7000, as the effect isnt nearly as useful
The bar to ban a card in Commander is quite high, and I wouldn't expect any action to be taken if things remain on the current trajectory
If you placed any damage counters in this way, discard this Pokmon and all cards attached to it