I'm a lv 207 Hero in Windia. I recently learned about character cards and how they can be used in combination to give stat bonuses. I wanna know what will help with my hero the most. I was reading this guide from Ayumilove, I wanted to go for the "pure damage" deck but I do not have a buccaner nor a thunder breaker (nor would I be interested in making them regardless of the bonus they would offer)
A level 200+ and does not know about character cards? (raises eyebrow suspicously)
Back to your question though, there are some bonuses for having multiple Cygnus knights, same job branches etc but the only card I care about is Zero's EXP boost.
I would recommend going through the ones you already own and using whichever cards add % damage, since those should be better than most of the set bonuses already. --- "You have your invincible spell!" Kerberos - Card Captor Sakura, El Nido Bow Master