Shrouded Serpent

Creature - Serpent 4/4, 4UUU (7)
Whenever Shrouded Serpent attacks, defending player may pay {4}. If he or she doesn't, Shrouded Serpent is unblockable this turn.
Many travelors have wandered into a fog only to find it had teeth, claws, and an appetite.
Illus. Dana Knutson

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Prophecy (Rare)