Icarus was easy to get (in the third heroic soul!) but Daedalus is a bad boy, 50 souls and nothing more than 2 Gunner Angels and 2 Sentinel Rescuers ...
Yeah I got him at source so was lucky for sure - he is indeed a monster and I use him in NOTB too. I actually just shut down my heroic soul options given the chat here - I converted them to precious as needed the gold - so 140 potential ways to get The Count and Redan gone but I prefer to know what I am getting than gamble - I always pretty much lose on that! This way I have gone from oly a few million to over 10 million gold and I can breath a little more easily!
I would actually be ok with the odds if we had a way to collect tons of heroic souls.