📺 AnimeOne Piece Episode 1168: Japanese Fans React to Shamrock's Kerberos Devil Fruit — "They Definitely Did This to Kill the Blackbeard Theory"
One Piece anime episode 1168 revealed that Shamrock's sword holds the Kerberos zoan devil fruit, and Japanese fans immediately zeroed in on what it does to a long-running fan theory: that Blackbeard secretly ate the Kerberos fruit himself. The top reaction says it outright — the anime staff clearly timed this reveal to kill that theory once and for all, since a three-headed dog now living inside someone else's sword makes the "Blackbeard is Kerberos" idea structurally impossible. From there the thread splits into two running debates: whether the ability itself (heads flying off the sword to stab things) is a disappointingly plain way to debut a mythical zoan, and the bigger mystery nobody can crack — how do you even feed a devil fruit to an inanimate sword in the first place. It closes on fans just laughing at how silly the whole spinning-collar mechanic looks in motion.