Vilya, Ring of Sapphire

{t}: Add {c} to your mana pool.
{1}, {t}: Put a storage counter on Vilya.
{t}, Remove any number of storage counters from Vilya: Add {c} to your mana pool for each storage counter removed this way.
Elrond wore a mantle of grey and had a star upon his forehead, and a silver harp was in his hand, and upon his finger was a ring of gold with a great blue stone, Vilya, mightiest of the Three.