Aphelios, the Faithful Weapon

Vigilance
Whenever an equipment enters the battlefield
under your control, you may pay 1 life. If you do,
attach it to Aphelios, the Faithful Weapon.
Unattach an equipment from Aphelios, the
Faithful Weapon: Choose one—Aphelios, the
Faithful Weapon deals 1 damage to any target; or
you gain 2 life.