Obscrul Spinner

Entice 3 (Reveal Obscrul Spinner from your hand: Exile the top 3 cards of your library. Obscrul Spinner costs {x} less to cast this turn, where {x} is the total converted mana cost of the exiled cards. Activate this ability only once each turn.)
Trample, reach
The beasts of the Obscrul Forest are large and reclusive. They are also very hungry.