White Mana Glimmer

Discard White Mana Glimmer from your hand:
Add {w}. Exile White Mana Glimmer from your
graveyard. Activate this ability only as a sorcery.
If White Mana Glimmer is in exile, you may pay
{c} to cast it. When you do, it has flash and your
choice of "Add {w}" or "Create a token that's a
copy of White Mana Glimmer except it's a
creature in addition to its other types and it isn't
a sorcery. Then, shuffle this card into your
library."