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Stalker Wrench Mod was a mod that can be accuired for OmniWrench 10K when a full set of Stalker Armor was collected. The wrench poisoned enemies, causing their health to run out over time. It was the most powerful wrench mod, and it could even kill Challenge Mode enemies easily, as other mods usually only damaged them.
- Ratchet & Clank: Size Matters (first appearance)