For when you don’t have your Super Rare copies of the German Rosenfee.
Dark Rose Fairy
If a Tuner(s) is Special Summoned (except during the Damage Step): You can Special Summon this card from your hand. If this card is in your GY: You can send 1 card from your hand or field to the GY; place this card on the top or bottom of your Deck. You can only use each effect of “Dark Rose Fairy” once per turn.
Source: TCG EU Twitter.