Yz (Earth-2: Post-Crisis)

"What the heck are you? I'm your new best friend and you don't even know it!"

- Mike Dugan and Thunderbolt

Yz, better known as Thunderbolt, is a former member of the Justice Society of America.

Early life
Yz was originally from Bahdnesia before his homeland's destruction. Later, he went to the United States and his presence as a "genie" caused a heart attack in an elderly man, sending him to the emergency room.

Johnny Thunder & the Thunderbolt
At some point, Yz started using the alias "Thunderbolt" and worked alongside Johnny Thunder to fight crime as members of the Justice Society of America.

On December 24, 2010, Johnny and Thunderbolt fought against the Injustice Society of America. Unfortunately, Johnny passed away after Brainwave murdered him before he made a final wish for Thunderbolt to find a friend. After Johnny's death, Thunderbolt was stored as a pink pen in the Justice Society of America headquarters.

Taken to Blue Valley
When Pat Dugan brought Courtney Whitmore to the Justice Society's headquarters, she attempted to pick up Thunderbolt's pen but was told not to as it was the most dangerous thing there. Courtney later returned to the headquarters and took numerous JSA artefacts, including the Thunderbolt. She later tried to use the Thunderbolt by clicking the pen but nothing happened even after several tries, so she placed it in a pencil holder and left the room.

So Cool!
In summer 2021, Mike Dugan took Thunderbolt and not realize it was not an ordinary pen. He later altered words in Mike's eyes and they appeared as "so cool". Mike quickly tripped over a stone and said the words out loud, releasing Thunderbolt from the pen as he exclaimed in joy. Thunderbolt introduced himself as a member of the JSA and started telling Mike about his past with Johnny.

Thunderbolt and Mike soon walked around and found a little girl being bullied by Mike's classmates. Mike wishes for them to stop. Unfortunately, his wishes were vague and Thunderbolt sent stop signs to land in front of them until they actually stop. Courtney and Yolanda later arrived and brought the two to the Pit Stop.

Powers
"Don't touch the Thunderbolt! That's the most dangerous thing in here."

- Pat Dugan to Courtney Whitmore


 * Djinn Physiology: Thunderbolt is a Djinn and possesses a vast variety abilities, allowing him to assist his masters easily. He also resides in a pink pen unless people releases him saying "so cool", pronounced "sowkewl" in his native homeland of Bahdnesia and means "set free the all-powerful force upon the Earth of the magical and awe-inspiring Thunderbolt". However, there are still limitations to his masters as they are required to be completely and utterly alone.
 * Flight: Thunderbolt is able to levitate midair and fly around at an exceptional speed.
 * Electrokinesis: Thunderbolt's body consists of pink lightning, giving him the power to create small bolts of the energy out of his body.
 * Wish Granting: While bonded with his masters, Thunderbolt is able to follow their orders and granting their wishes. However, they are rules and restrictions to the power.
 * Reality Manipulation: The Thunderbolt is able to alter and change certain aspects of the reality in order to grant his masters' wishes, such as bringing Mike Dugan on a bench when he asked to be taller.
 * Conjuration: In order to fulfil his orders, Thunderbolt often conjures items out of nowhere, including stop signs.
 * Teleportation: Thunderbolt is able to jump from location to location, allowing him to travel instantly.
 * Super Speed: After being freed from the pen, Thunderbolt quickly flew around at an exceptional speed before settling to introduce himself to Mike.
 * Telepathy: The Thunderbolt was able to read Mike Dugan's mind and automatically identify who the "better hands" meant when he wished the former to be in better hands, eventually being acquired by Jakeem Williams.

Weaknesses

 * Specific Commands: The wishes and commands sent to Thunderbolt are required to be exact and specific, with them being possible of backfiring and not meeting his masters' initial idea.
 * Rules: Thunderbolt's powers and abilities are limited by certain rules, such as no death inducement, no resurrections, and cannot wish for the same thing twice. Additionally, Thunderbolt did not recommended body transformation as it often result in negatively.