Blazarna, Goddragon

Blazarna, Goddragon can't be countered. Flying, protection from non-white spells, annihilator 4.
When you cast this spell, take an extra turn after
this one, but you can only cast white spells during
this extra turn. When this card is destroyed,
its owner shuffles their graveyard into their
library, then draws 1 card. If the card drawn is
this one, summon it immediately, and it has
annihilator 6, instead of 4.