The Nauglamir

At the beginning of each upkeep, if The
Nauglamir is equipped to a creature you control,
add three mana of any colour to your mana pool.
Equipped creature can be attacked as though it
was a creature or planeswalker.
Equip {3}.
"Nauglamir, the Necklace of the Dwarves, most
renowned of their works in the Elder Days."