Varion Martelus

When Varion Martelus enters the battlefield, exile another target creature or planeswalker until Varion Martelus leaves the battlefield. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.
{r}: Discard a card; Draw a Card.
{u}{b}{1}: Draw two Cards, lose 2 life.
{b}{1}: Surveil 2