Teferi's Honor Guard

Teferi's Honor Guard

Creature - Human Knight | Power/Toughness: 2 / 2 (CMC 3)
Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)
: Teferi's Honor Guard phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)