Nauglamir

Equip, {r/w}{r/w}{r/w}
Equipped creature gets +3/+3 but must fight
every combat if able.
"Then the lust of the Dwarves was kindled to rage by
the words of the King; and they rose up about him,
and laid hands on him, and slew him as he stood."
-Silmarillion (233)