Rouxls Kaard

Rouxls Kaard is a Darkner from the Card Kingdom and a recurring miniboss in Deltarune . He proclaims himself the "Duke of Puzzles" and is a servant of King in Chapter 1 . In Chapter 1, he challenges the party multiple times throughout Card Castle to complete his trivially easy puzzles, then forces the party to rematch against K. Round . In Chapter 2 , he enters the inventory and is taken to the Cyber World , where he attempts to work for Queen and challenges the party in Queen's Mansion as a mini boss. He reappears as a secondary antagonist in Chapter 3 , where he attempts to become Tenna 's second-in-command by forming a polycule with Lanino and Elnina , and fights the party as a miniboss a