Mechzark, the goblin

Mechzark is a being of the goblin class who lives in Queeward, a fantasy post-apocalyptic world. He has a very important role in his clan, besides being an excellent mechanic and building incredible machines and vehicles, he is also the fastest guy on this land, even without having one of the legs. In fact he built his own mechanical leg. This prosthesis is his masterpiece in terms of performance and power. With it, he can run at unbelievable speeds and give breathtaking jumps. This is very useful because he is able to go on enemy lands to search for pieces of vehicles and fuel (rare and precious stuffs at that time). His goal is to build several vehicles to transport his companions to lands less affected by the great toxic war of the past. His backpack carries some tools and oxygenation equipment (in case he visits heavily intoxicated lands). He is close to reaching his goal, but he must hurry because an enemy army is approaching to take whatever was built at whatever cost.