Making Bilge Farfathom rare again

[John Adams]

The data you are changing is in a tabled called npc_faction_entries.

Columns: npc_faction_id | faction_id | value | npc_value
Data: 4 | 106 | -30 | -1

That last bit, npc_value, is the NPCs aggro flad Aramid mentioned. It does look like it might effect all NPCs in that faction, but you can make a custom version of that faction for your NPC/Group that's tied to the base (faction_id). I think. It's early. And I have a 40 mi drive ahead of me. I'll check back later.