Origins:

"Get ready," Cosmohyx whispered to herself. Taking a deep breath, she lit up the nether brick rectangle- 6 blocks high and 4 blocks wide. A purple mirage shimmered between the blocks, and out stepped a man. He glared at her haughtily.
"Why did you bring me here?" he snarled in a voice that cracked like thunder. Cosmohyx tried to speak, but her voice had gone missing. "Never mind," the man said dismissively. He waved a hand and Cosmohyx was flung into a cliff.

Cosmohyx suffocated in a wall.

The man spread his arms. Instantly, all trees dissapeared. Dirt turned to stone. His purple gem, his store of power, began glowing. "This is my world now. And no one can challenge me, because I AM THE ALCHEMIST"
Out of the ground, portals burst into the new land. The Wither and the Ender Dragon finally were ready to serve their new master.

Skills:

Pure ender power- A power that originates within the ender gem. Although the user gains infinite power, the user also slowly gets consumed by the evil within the gem.

Alchemy: The Alchemist obviously can do alchemy but his skill in alchemy is combined with the gem's power meaning that he could actually turn coal into diamonds and gold into emerald.

The Goggles: His goggles have purple lenses that are rimmed with rusted brass. They help him see hidden things and the amount of health left in his victims.