How to Easily Defeat The Reaper in Persona 5 Royal. If you just want the trophy then drop it down to Safe difficulty. If you want to farm XP or the Divine Pillar drop item then hit The Reaper with Debilitate, use the auto-ma skills or thermopylae to boost the party, ensure your best persona has magic ability + damage boost + damage amp, and use fusion alarm sacrifices to boost that Persona's magic stat.