Where to spoil Heavy Sword Edge

3 monsters drop Heavy Sword Edge on spoil, the lowest level is 21. The chance already assumes solo spoiling with no level-difference penalty: put your own level into the calculator.

MobLvlSpoilsWhere
Ghost Guardian Ghost Guardian 21 Heavy Sword Edge · chance 3.72% · 1 pcs Immortal Plateau, Schuttgart Territory
Monster Eye Searcher Monster Eye Searcher 22 Heavy Sword Edge · chance 2.39% · 1 pcs Dion Hills
Ol Mahum Reserve Ol Mahum Reserve 23 Heavy Sword Edge · chance 2.39% · 1 pcs Windawood Manor, Partisan's Hideaway, Dion Territory

What it pays and what is better to kill at your level — in the spot finder.