Sigurd of the Final Stand

Flash, lifelink, vigilance
When Sigurd of the Final Stand enters the battlefield, creatures you control get +2/+2,
lifelink, vigilance, and trample until end of turn.
When Sigurd of the Final Stand attacks, put a fate
counter on him. Then, if there are three or more
fate counters on Sigurd of the Final Stand, exile
him and return him to the battlefield transformed
under his owner's control.