May I remind you that this universe is if the Mercenaries were born as ponies and also that this universe takes place a few years before the return of Nightmare Moon.
 
Name: Spy  
Gender: Male  
Species: Changeling  
Role: Undercover agent and Assassin  
Class: Support  
Origin: The Changeling Hive  
Talent: Getting in and out without being seen  
Abilities: His changeling magic is still with him, he is able to disguise as anypony he wants and drain the love from their lovers, this disguise will stay in place until discovered or attacked and any love that he drains will power his magic. Spy has self taught himself how to turn invisible, due to changeling magic not being very strong when it comes to spells and charms, his invisibility doesn’t last very long.
 
Bio: Spy had never always agreed with Queen Chrysalis’s way of ruling, putting the hive in danger for her own selfish gains. Sure she feed her changelings with love and kept them safe, but her greed was too much. She wanted Canterlot. She wanted to stay Queen. Spy was originally know as Spy No.224, meaning he was the 224th spy in the changeling army, he was sick of it. One day, while sneaking around the hive he stumbled upon Queen Chrysalis’s plans to take over Canterlot. After taking this info to Princess Celestia and helping the royal guard stop the changelings from getting to Canterlot, Spy was captured and had his wings burnt off and his shell(?) dyed red, marking him a traitor, thankfully, the Princess saved him and employed him as the first of her mercenaries. Once the team had all gotten together he didn’t trust any of them, only trusting Sniper a little due him not being a pony. Soon he began getting along with both Medic and Sniper of the support class and took a shine to teasing Scout, whom often got paranoid about changelings sleeping with his mother.