what are link cards in yugioh Five-Headed Dragon | Card Details Yu-Gi-Oh! Legacy of the Duelist:

Despite being the least valuable SAR, Dachsbun remains highly sought after

The deck just meets the companion restriction and can technically cast it with Springleaf Drum so its literally free to include which is why companions as a whole is a stupid mechanic and probably should have never been printed

These serve primarily for two reasons: the first is to provide the cards to playtesters who engage in trial matches to determine whether the cards function effectively within the game mechanics or if adjustments are needed regarding attack power, the number of HP (hit points), and the strength of abilities the second reason is that test prints are conducted to assess the effectiveness of a new design when applied to the card, to ensure that the printers have been set up correctly, or to determine if a new holographic effect can be utilized Over the years, various test prints have surfaced on the market, and they are often rare cards with questionable origins

Let's look at some of the stronger cards in this set with offspring: Agate Instigator Doubling down on this type of effect with the same card is great