Auril, The Frostmaiden

If your devotion to blue and black combined
is less than 7, then Auril isn't a creature.
{1}{u}:Taps up to one target creature, that
creature does not untap on opponents next
upkeep.
{2}{b}:Exiles target creature from target graveyard.
Partner (You can have two commanders if both have partner)
"I knew you'd find your way here... eventually.
Do you hear me? Whispering from the stars and the
cold dark night."