Number 49: Fortune Tune

2 Level 3 monsters During each of your Standby Phases: Gain 500 Life Points. This card cannot be targeted by card effects. If this face-up card would be destroyed, you can detach 1 Xyz Material from this card instead. When this card is sent from the field to the Graveyard: Target 2 Level 3 monsters in your Graveyard; shuffle them both into the Deck, and if you do, return this card from your Graveyard to the Extra Deck. You can only use this effect of "Number 49: Fortune Tune" once per turn.