Leonard, Legendary Horse

Friends Forever {4}: Leonard, Legendary Horse
can be bonded to a creature other than Radahn
if Radahn is not on the battlefield. Bonded
creature will permanently gain Vigilance and
+1/+1 until it leaves the battlefield, even if
Leonard becomes unbonded from this creature.
If Leonard were to be removed from play while
Radahn and himself are on the field, transform
himself and Radahn.