It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
A reasonable approximation of the expected power of gold cards is that your 2nd colour of mana adds about a 1/3rd of a mana, the 3rd colour adds 2/3rds of a mana and the fourth is a whole extra mana
This is definitely worth playtesting in different creature based decks
Replace the placeholder with the correct URL or PID before the task begins its add-to-cart process
this is a cheap white spell that destroys target tapped creature, as well as scrying 2 if the player spent 1 blue mana to cast it
At the End Phase, Thunder Dragonlord can even act as a Foolish Burial and dump a Thunder Dragon card into the Graveyard