Citadel of Serra and Avacyn

{t}: Add {1} to your mana pool.
{t}, Pay 1 life: Add {w} to your mana pool.
{2}{w}{w}, {t}: Put two 1/1 white soldier creature tokens onto the battlefield under your control. You gain 5 life.
They never left us. They are always here, embodying the golden light that shines down upon us.