The Others, Eternity Undone

Reach, lifelink.
Elder
Pyridium of Insanity-
(While The Others, Eternity Undone
is on the battlefield no instants, soceries, enchantments,
or artifacts may be cast.)
{12}, Sacrifice The Others, Eternity Undone.
Exile all permanents, all players lifepoints totals
become the starting total.
Return all creatures in your graveyard to the battlefield tapped.