Zixlauth, Who Outruns Light

If Zixlauth is in your opening hand, you may
begin the game with it on the battlefield.
Flying, haste
Whenever Zixlauth attacks, roll a d4. The next
X times Zixlauth would be dealt damage or die,
it phases out, where X is the number rolled.
This ability only triggers if Zixlauth
hasn't phased out on your last turn.