For those who want to bypass the grind entirely, technical cheats offer a direct solution. For Original Hardware/Emulators (Gameshark/Action Replay)
Master Suikoden 2 Item Drops: Mechanics, Strategies, and Cheats suikoden 2 drop rate cheat
: If playing on an emulator , create a save state right before the killing blow. If the item doesn't drop, reload and change your attack pattern or timing slightly to reset the RNG. For those who want to bypass the grind