You stand at the edge of a well and fill a coin with malefic energy. By dropping the coin into the well, it subtly causes it to become poisonous. Creatures that drink from it become drained 1 (fort negates).
This curse can be removed by removing the coin from the well.
Upcast - You can affect larger water sources by spending more mana.
At 2 mana you can effect larger bodies of water, such as lakes and creeks.
At 3 mana you can effect large lakes and 1 mile of river.
At 6 mana you can effect an entire river, regardless of its length.
