Ulakama, Dragon Goddess

Flying, Trample, Vigilance, Deathtouch,
First Strike, Wonder 3 (Spells can't target
you or permanents you control, you and permanents
you control can't take damage, and permanents you
control can't leave the battlefield for three turns.)
When Ulakama, Dragon Goddess enters the battlefield under your control, it becomes day.
{w}{u}{b}{r}{g},{t}: You phase out until the
turn after your next.