Survival Game: My Skill Bar Can Be Synthesized

The world has become a gamified apocalyptic battlefield, and everyone can see their own skill bar. When Lin Bei awakened, he only had two garbage skills: [E-level: picking up garbage] and [E-level: standing still]. Everyone laughed at him as the most useless awakened person. Until he accidentally dragged the two skills together—— [Synthesis successful! Obtained: D level·Scavenger pace] Lin Bei looked at the flashing [Synthesis] button under the skill bar and fell into deep thought. Three days later, when S-level monsters descended on the safe zone and everyone was in despair, Lin Bei silently merged [B-level · Barrage Shooting] and [A-level · Absolute Penetration] together...