The Philosopher's Stone

As an additional cost to cast this spell, pay 2 life.
{1}, {t}: Create a Potion token. (It's an artifact with
"This enters the battlefield with three charge counters
on it" and "{t}, Remove a charge counter from this:
You gain 1 life.")
{w}, {t}: Shuffle target card with mana value 3 or
less from your graveyard into your library.
{b}, {t}, Sacrifice a noncreature permanent: Create
a Gold token.