The God of Machines TGoM

Centuries prior, the Gods blessed this world with their magical powers, granting their abilities to everyone born from their lineage. Luckily, everyone is descended from a deity, but unfortunately, their power wanes with each generation, until the modern day, where the young generations cannot hope to become powerful.
Lua Moonsilver is one of these younger generations. He is a Tinkerer descended from the God of Machines, and is very weak compared to his ancestors. He was destined to live out his days making toys.
By unknown circumstances, Lua encounters a gem in a forest, that gets him into contact with one of these ancient Gods. He learns about the secret of evolution, granting him the priceless knowledge to become stronger.