Great Rupee Fairy
From Zelda Wiki, the Zelda encyclopedia
The Great Rupee Fairy is a Great Fairy in The Legend of Zelda: A Link Between Worlds. She is found in Lorule, just behind the Bomb Flower shop. Once access to the Bomb Flower has been paid for, the entrance to her fountain can be opened by blowing up the large rock in front of it.
When Link first enters the fountain, the Great Rupee Fairy is very small, and no other fairies appear in the fountain. By throwing Rupees into the fountain, she will get stronger and larger until she is the size of a regular Great Fairy. Also, small fairies will begin appearing.
Once she has been restored to full power (which requires 3000 Rupees total), she will give Link a Bottle. After this, no more Rupees can be thrown into the fountain.