Starry Knight Balefire

Normal Spell

Add 1 "Starry Knight" monster, or 1 Level 7 LIGHT Dragon monster, from your Deck to your hand, then, if you control no monsters and your opponent controls a DARK monster, you can Special Summon 1 Level 7 LIGHT Dragon monster from your hand. You can only activate 1 "Starry Knight Balefire" per turn.

Rulings – Yugipedia

Printings:

Ghosts From the Past: GFTP-EN031 (Ultra Rare) - 2021-04-15

Prices:

Cardmarket: 0.24 €
TCGplayer: $ 0.39