Wehrkind wrote:
Fateweaver is an issue (see DH inquisitor reference above) but outside that, your post is a little iffy.
Most daemon Troops choices are T3-4 with a 5+ save. 'letters are T4 5+, daemonettes are T3 5+, horrors are T3 4+, flamers are (I think) T4 4+... I don't recall fiends of slaanesh, but I think they are T5 5+. Really Plague Bearers are the only troops that can soak fire, which is why the scary lists often just drop the elite Bloodcrushers in piles and leave the troops to just sit and hold things.
Now, that doesn't mean they evaporate before battle cannons like most troops, but when ~1/2 of your hits kill, most daemons are in bad shape when facing down cannons.
Of course a simple 5++
Sv isn't going to keep you in the material universe for long. However, it's not only troops that are scary. They might be the only ones who can score but they're far from the only ones who can dish out some serious hurt. Greater Daemons, Fiends (2 wounds), Beasts, Flamers, Crushers, Screamers are all relatively tough
IMO, or so fast that one doesn't get many chances to shoot them down, and can often keep huge portions of any
IG force occupied.
The Fateweaver +
FNP + possibly cover simply takes things to a completely new dimension (and yet I see very few lists that include it. Perhaps the high cost at first looks too intimidating).
All of that notwithstanding, Daemons are actually one of the few armies I win close combats against on a pretty regular basis. I2, WS2 etc. do that to you, so some fun can be had by all!