Quest for the Creator

As long as Quest for the Creator is untapped,
Whenever you draw a card, you may reveal it, for
each card revealed this way put a quest counter on Quest for the Creator.
{t}:Remove 13 quest counters from Quest for the Creator, Exile all non-Legendary permanents in
play, For each card exiled in this way deal 1 damage
to each player for each legendary card that player
has either in play or in their graveyard except for
any cards called "Quest for the Creator"