Mithral Hall

Mithral Hall can be your commander.
{t}: You may cast either Drizzd Do'Urden,
Bruenor Battlehammer, Catti-brie of Mithral
Hall or Wulfgar of Icewind Dale from your
Library or your Graveyard. The casting cost for
each of those creatures increases by {c}{c} for each
time it has been put into the graveyard.
If Mithral Hall isn't your commander, at the end
of your turn pay {w}{r}{g} or exile it.