(every day, I browse this thread for great fanworks, and every day, I get great presents. Kudos to the authors!)
Okay, this is not strictly Solas-related, but hear me out: this time, I tried to go the whole game with Cassandra, Varric and Solas, to hear banters I haven't heard. And finally, FINALLY, I got a great pay-off. There's a banter between Varric and Cassandra after the Grey Warden storyline, and it concerns Hawke and companions. And Cassandra is talking about Anders(who naturally wouldn't be able to stay away from my Hawke, being a romance interest), then Hawke's brother, Carver, and finally, Varric, and Varric confirms that yes, all of them would naturally find Hawke at that Grey Warden fortress and tag along, even though Hawke would keep saying it's dangerous.
Anyway, my love for Cassandra just grew tenfold, because Anders-Carver-Varric is my DA2 party forever, and hearing that they would travel again like that is.. is... is like ten birthdays at once, only without becoming ten years older.
And of course, Cassandra-Varric have the greatest banters about his books.
(and yes, Solas has an incredible amount of banters with Cassandra, too. So I think it's really a worthy(maybe the best) combination, even though because of the banter bug I sometimes get five banters at once and sometimes go for hours without a single one.)