iss_csw-0.1.9.5.jar is a beta file of the Minecraft mod Interlace SpellWeaves: Iron's Spells and Spellbooks Addon for Forge, made for Minecraft 1.20.1. It was published on April 29, 2026 and is 2.8 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Interlace SpellWeaves: Iron's Spells and Spellbooks Addon mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.