Emech is a champion based on the idea of solidified magic. He was born in caverns underneath the fields of justice, where the magic from the battles above started gathering, and at last solidifying into a sentient being.
His abilities reflect this. All of them carry the theme of solidifying his mana into a solid crystal-like form. Enemies get hurt from the sharp edges and get stuck within the rapid crystallization, while allies gain a protective coat from the solid mana.
The name, Emech, comes from the traditional activation word for the Golem, Emeth, with the T replaced with C. The C loosely represents "crystal". Basically it's just a cool name.
I suck at visual arts so no art:) My first champion concept ever btw.