Orb of Resurrection

When Orb of Resurrection enters the battlefield, search your library for a Mercy or Pharah and
add it to your hand. When you play Orb of Resurrection if Mercy is on the battlefield you
may equip it to Mercy. If Orb of Resurrection is
on the battlefield and Mercy is put on to the battlefield, you may equip Orb of Resurrection
to Mercy. Equip {4}: Equipped Creature gains
{t},Regenerate, If Orb of Resurrection is
equipped to Mercy, you may sacrifice Orb of Resurrection and activate Mercy's Ult.