Free to play No sign-up New challenge daily Play Hone →One Piece is full of legendary fighters from the older generation who made history long before Luffy set sail. Here are seven older-generation characters who are probably still stronger than Gear 5 Luffy. 6 Prime Garp Could Overpower Gear 5 LuffyMonkey D. Garp from the anime series One Piece. 4 Roger Reached the Top With Haki AloneGol D. Roger from the One Piece anime. In Chapter 1188 and 1189, Luffy activates Gear 5 and confronts Imu while revealing the new genie form.