Leto II's Hidden Spice Hoard

Prophecy {0}, Exile a card from your hand. (You
may cast this card for it's Prophecy cost when you
draw it if it's the first card you drew this turn.)
{t}, Sacrifice Leto II's Hidden Spice Hoard: Add
three mana of any one color.
"I bequeath to you my fear and my loneliness."
-Leto II, wall inscription