guardragon yugioh deck World Legacy [SAST-EN062] Ultra Rare Must be Special Summoned by a card effect Guardragon Garmides - Yu-Gi-Oh! Card

10 Dragoons Are Strongly Tied to Dragons The names are similar enough that this might be obvious, but there are many more connections beyond their name

However, it can't be called the rarest card from 151

The Graveyard is loaded by means of "Number 18: Heraldry Patriarch" and "Heraldic Beast Gryphon" to trigger "Heraldic Beast Leo" and then get revived with cards such as "Heraldic Beast Stad Whale" or "Advanced Heraldry Art": the second effect of "Gryphon" will let you make "Number 69: Heraldry Crest - Shatter Stream" (by way of "Number 69: Heraldry Crest") very easily

As card #197 in a set with 189 printed cards, it sits in the secret-rare numbering pulled less often than anything in the regular checklist