King Korjo, Coldfront Captain

You may pay {4}{s}{s} to cast Korjo instead of
playing it's mana cost. If you do, create a
legendary 2/4 red Bear Knight creature token
named "Big Bite" with "The 'legendary rule'
doesn't apply."
Creatures you control have Vigilance.
Tapped creatures don't untap during their controller's untap step unless they pay {s}.