Razorswitch

Razorswitch is an exceptional unique Jo Staff that provides solid defensive stats and Faster Cast Rate for casters in Diablo 2 Resurrected. While it offers respectable bonuses for mid-game progression, it's ultimately another staff that can't compete with Spirit runeword combinations.

Defensive Caster Option

Razorswitch delivers +1 to All Skills, 30% Faster Cast Rate, +175 to Mana, +80 to Life, and All Resistances +50. It also provides Magic Damage Reduced by 15 and Attacker Takes Damage of 15. This combination creates a tanky caster weapon that helps compensate for the lost resistances and blocking from not using a shield. The mana and life bonuses support sustained casting, while the FCR helps hit breakpoints.

Nightmare Transition Tool

Razorswitch works well for Sorceresses and Necromancers progressing through Nightmare difficulty who need resistance help and don't yet have access to Spirit. The +50 to all resistances is particularly valuable when Nightmare's resistance penalty hits. However, once you can make Spirit (Tal + Thul + Ort + Amn), which provides +2 to all skills, 25-35% FCR, and other bonuses while allowing shield use, Razorswitch becomes obsolete. Spirit's superior skill bonus and flexibility make it the clear winner.

Serviceable but Replaceable

Use Razorswitch as a bridge weapon between early runewords and proper endgame gear. The defensive stats make it safer than offensive alternatives, which helps in Hardcore mode. However, it's not worth farming specifically, and you shouldn't invest resources upgrading it. The lack of +2 skills compared to Spirit's offering means it falls behind quickly. It's functional, it's safe, but it's not optimal—the story of most unique staves in D2R.