Leyline of Insanity

If Leyline of Insanity is in your opening hand,
you may begin the game with it on the battlefield.
Nonland cards you own have madness, and the
madness cost is equal to its mana cost.
Rafiq and Elspeth were unaware of the dark and
chaotic leylines which had intersected below Giltspire
Castle during the Conflux. Malfegor was indeed gone,
but not in the way they presumed.