Phil sizes up the elves wandering the camp, identifies a few that look sufficiently wizardly, and attempts to strike up a conversation. “Hey so that old Thassiloian magic was really powerful, wasn’t it? And they could build those relics to last! Have you seen the runes carved in those things? Heck, they could pull down the whole sky on us!”Phil will attempt to speak with a few elves, inquiring who among them are the most skilled arcane casters. He would like to speak with them regarding cypher runes, old Thassilonian magics, etc. and both share what he's learned as well as trying to glean any secrets the elves may have discovered about the drow's eldritch machinations.
Most of those Phil approaches look at him askance; clearly seeing the subjects of Thassiloian magic and cypher runes distasteful in the extreme. There is one though who seems receptive, or at least doesn’t flinch away when Phil approaches. He wears dark green robes and seems intent on examining bits of stone and wood, treating them with a variety of chemicals in an attempt to further divine their nature.
Phil: Make a Knowledge: Arcana or Diplomacy check to interact with the elf.