King of Tokyo
When Mimic copies a card with a cost, counters or tokens, what do you get?
Replies treat the copy as a fresh purchase; the rulebook says to use your own counters as if you just played the card.
The copy acts as if you had just bought that card: you pay energy from your pool, then follow its instructions. You receive the full set of counters or tokens, such as three Smoke Cloud tokens. If the copied card leaves play, you take the Mimic counter back and lose the effect.