Ara'gul, the First God

Hexproof
(As and additional cost to summon
Ara'gul, the First God you must have
Sef, Harbinger of Ara'gul in play).
•Ara'gul, the First God gets +1/+0 for every
creature in exile.
{10}{t}, Destroy all lands, exile all non-land
permanents except for Ara'gul, the First God.
"From darkness we came, to darkness we return"