I feel this could be a cool feature for new duelist as myself to have a quick and easy way to see what cards can support the card I’m highlighting. The [Cards related to:] feature would find the all the cards that would fit the highlighted card description; telling you why and how it’s related — it being a lvl 3 monster card, a chain support due to it’s effect, the monster’s element/monster type and/or archetype, etc.
Here’s a screenshot on how it looks on Legacy of the Duelist:
Thanks for reading!