The Cursed Rainbow

{t}: Add one {w} mana to your mana pool.
{t}: Add one {u} mana to your mana pool.
{t}: Add one {b} mana to your mana pool.
{t}: Add one {r} mana to your mana pool.
{t}: Add one {g} mana to your mana pool.
{t}{5}: Add one mana of each color to your
mana pool.