Here are the One Unique Things from my players.
"I am the last Holy One. I am a being of energy that possesses vessels to do my holy work."
"The Elf Queen gave me a Court Mask that blends the styles of the Three Shards into one."
"I am the first Draconic. I was born in a battle between the Great Gold Wyrm and The Three."
"I possess the memories of 1001 dead wizards."
"The Prince of Shadows stole my heart, but I took something even greater from him."
"I am the last living Dwarf Cleric of Yrd. All the rest were turned to stone by my god at the Battle of Standing Stones."