This card cannot be Xyz Summoned by the normal method using 4 Level 9 monster, nor can it be Special Summoned from the Graveyard by card effects. It can only be Special Summoned by the method described in its text.
If you meet the "During your End Phase, if this card has no Xyz Materials and your opponent has 2000 or less Life Points, you win the Duel." condition, then you win the Duel as soon as you reach your End Phase. You cannot continue the Duel.