Halvar, Sword of the Realms

Halvar is an Aura Equipment Fortification.
Enchant permanent you control.
You may cast Halvar without a target.
Halvar is not an aura as long as it is not attached
to a permanent.
The permanent Halvar is attached to gets +2/+0.
Whenever the permanent Halvar is attached to
dies, return it to its owner's hand.
Equip {1}{w}
Fortify {1}{w}