Tyr, Scourge of Ebon Hold

When you cast Tyr, Scourge of Ebon Hold,
create a legendary 2/2 white Tyr creature token
with Indestructible and Shroud. You may pay {0} at any time to turn Tyr, Scourge of Ebon
Hold into an Aura card and attach it to any
creature. If Tyr, Scourge of Ebon Hold would
leave the battlefield, return it to its owner's hand instead.
Enchanted creature has +3/+3, Lifelink and
"{t}: Create 3 2/2 white Knight creature tokens."