Creature - Human Knight 2/2, 2U (3) Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) When Knight of the Mists comes into play, you may pay {U}. If you don't, destroy target Knight and it can't be regenerated.1 Fear the mists, for they are armed.
Illus. Harold McNeill