Act of Duplicacy

{0}: Draw a card. Activate this ability for this card only once.
Cards you opponents own have flashback. It's flashback cost is equal to it's mana cost.
Whenever an opponent casts a spell from their graveyard, each opponent loses 1 life. You gain life equal to the life lost this way.
Duplicator 1 (This spell creates a token copy of itself at the end of each turn, then sacrifices itself.)