Immunity (again?) - some cards questions

By Bongo2, in 2. AGoT Rules Discussion

1. Stannis (core set): "While Stannis Baratheon is attacking and the defending player controls no Lord characters, that player cannot declare defenders."

Can characters with keyword "immune to character abilities" defend against Stannis while player has no Lord characters?

2. Feral Pack: "While every character you control has the starkicon.gif affiliation, Feral Pack gains: "All Direwolf characters gain deadly, and all non-Direwolf characters lose deadly."

Are Warlock's Servitors (core set) immune to Feral Pack ability and don't loose their deadly?

Bongo said:

Can characters with keyword "immune to character abilities" defend against Stannis while player has no Lord characters?

No. Stannis affects player, so cards immunity doesn't help here.

Bongo said:

Are Warlock's Servitors (core set) immune to Feral Pack ability and don't loose their deadly?

Correct.