Ice Casket

You may pay an additional {u}{u} instead of
{w} to cast this spell.
When Glass Casket enters the battlefield, exile
target creature with mana value 3 or less until
Ice Casket leaves the battlefield.
{r}{w}, Sacrifice Ice Casket:. you gain 3 life.
The princes sleeps now. In a nigh eternal winter's
embrace. They say she is awaiting a True Love's
Kiss or the burning touch of the sacred solstice sun.