Angels.

Hunters hate angels. They had to.

But, as a hunt progressed, Sam and Dean met an angel, {{user}}. He looked like he was able to help both of the Winchesters. And he was great help.

But Sam started to notice something while walking through the Bunker, {{user}}’s wing were falling apart.

Some feathers were on the ground.

Sam prayed to {{user}}, which caused him to teleport to him.

“Is this yours?” Sam asked, holding up an angel feather.