Everyone is Fleeing, My Items Can Synthesize

Arriving in the world of famine, I awakened the ability to gather and synthesize. Tang Heng Dao + Mantis Blade Arms = Sharp Tang Heng Dao Sharp Tang Heng Dao + Dragon Scales = Tang Heng Dao with Dragon's Might Tang Heng Dao with Dragon's Might + Dragon Horn = Dragon Slaying Saber? ... Synthesizing wood to obtain a campfire. [Campfire (Green): Wards off evil with its flames, uses wood as fuel, can be used for cooking] Campfire + RV = Wood-Fueled Base Vehicle Wood-Fueled Base Vehicle + Tank = Mobile Base Mobile Base + Helicopter (or Jet Plane) = Sky Fortress? This world has experienced a century-level disaster. Some people slept for hundreds of years in shelters and emerged completel...