Constellation Phenax

Constellation - Each player mills one card.
{1}{b}{u}: The next spell you cast a spell this turn
may be cast from Exile and/or as though it had
flash. It can not be countered.
{0}: Constellation Phenax - becomes a 6/6 God
Incarnation creature with "A player that would
be damaged by Constellation Phenax exiles the
top six cards of their library instead". until end
of turn. Use this only if you Devotion to Black
and Blue is 8 or more and you do not control a
creature named Constellat