Stardust Shining Punisher!!

■ You may cast this card if your opponent life is 5 or less, a monster with "Jackknife" in its card name is on your field, and you have an item with Release Condition! equipped.

■ Deal 5 damage to your opponent!! This card cannot be nullified, and the damage cannot be reduced. If your opponent's life would become 0 by this card, it cannot be changed by your opponent's card. (Unrevivable)