Redmane Castle

When Court of Embereth enters the
battlefield, you become the monarch.
At the beginning of your upkeep, create
a 3/1 red Knight creature token. Then if
you're the monarch, Court of Embereth
deals X damage to each opponent,
where X is the number of creatures you control.
"A fortress on an island to the south of Caelid, connected
to the mainland by a heavily fortified greatbridge."