if any attachment gain's deadly that deadly has fulfild on challenge?

for example, you play direwolf attachment and feral pack. that character with attachment gain deadly?

thank you

Periklis

Feral Pack says that all Direwolf characters gain deadly. So Feral Pack will not make a Direwolf attachment Deadly.

Characters do not gain the traits of their attachments. (So putting Grey Wind on Robb Stark does not make Robb a Direwolf or a Creature.) Characters do not gain the keywords of their attachments, either. (So putting Lightbringer on Stannis Baratheon does not make Stannis Vigilant.) So even if Feral Pack did give Direwolf attachments the Deadly keyword, it would not be passed on to the character - and would be useless in a challenge.