It won't copy any counters or stickers on that creature or any effects that have changed its power, toughness, types, color, and so on, and a creature becoming a copy doesn't remove any such counters or effects that are already applying to it
Here a similar list someone else made on the French Pokmon forum last month
The paint is applied in very thin layers to keep the card as flat as possible, but still may be a little textured from the applied paint
Realm-Cloaked Giant In a lot of situations, Realm-Cloaked Giants adventure will be a reasonably-priced white board wipe
For example, if the exiled card is a sorcery, you may cast it only during your main phase while the stack is empty
Thats made them much harder to find, and much more valuable