Rare, expensive potion that repairs damaged structures, splashed on to restore them.
Mordecai raises the Fix potion as the reason a merely collapsed bait shop must be guarded: an enemy can splash a Fix potion on it and the saferoom entrance is back online. Donut is outraged to learn a potion exists that fixes things when she just paid five million gold for a new Mobile Anti-Air Gun, but Mordecai explains the ingredients are rare and cost more than most anything worth fixing. He is brewing one himself, reserved strictly for emergencies.
Emergency Repair Scrolls do the same job and are likewise rare.
A potion meant to be splashed onto a damaged structure.
Repair consumable whose existence forces the crawlers to guard their collapsed saferoom entrance.