pvp_pack_longsord_addon_v0.18.zip is a release file of the Minecraft resource pack Toycatw's PvP Pack - Longsword Addon, made for Minecraft 1.16.5, 1.8.9. It was published on February 17, 2021 and is 0 MB in size. For the full description, screenshots and every other version, visit the Toycatw's PvP Pack - Longsword Addon resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.