Ten Thousand Races War: I Have a Fusion Ability

Zhuo Bufan woke up in a world where all ten thousand races were at war, ranging from orcs to elves, dwarves, dragons, demons, and more.
Every race had its own land with various resources for them strengthen their body and become stronger. Occasionally, gates would open, and wars would be waged between races.
The Human Race was on the losing side as their bodies were weak compared to the orcs or dragons.
Just as Zhuo Bufan was wondering what to do next, he found out he had a fusion ability, a power that allowed him to fuse everything in the world.
[Tree Branch x1 + Flint x1 = Axe]
[Rock x1 + Wet Mud x1 = Well]
[Beast Fur X1 + Demon Crystal x1 = Immovable Radiant King Armor]
[Obsidian x1 + Tree Branch x1 = Ice Fire Magestaff]
While the other races were farming resources to survive, Zhuo Bufan already had a weapon of mass destruction and an invincible armor.
“Is this the Ten Thousand Races War? Where’s the brutality? This is too easy for me!” he laughed.