Hôarmûrath, the Ice King

Ring Hunter — Can attack the ringbearer as if it is
a Planeswalker. The ringbearer gains a -1/-1 counter
if fades out when attacked by any Nazgûl.

If the ringbearer dies when attacked by a Nazgul,
you gain control of the One Ring.

Hôarmûrath receives +1/+0 for each other of your
attacking Nazgûl. If a Nazgûl dies, exile it untill
your next turn and then return it to your hand.