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....If they were positioned in a group or stacks (2 or 3), it would be easier for the demons... But I disagree about the succubi; there are times when sulfur is available, and 5 Hellhounds are better than succubi, although I usually save up for the Lords, as they are still better than the Hellhounds and can also cast spells... I just don't like the new succubi with their ability; it's not very effective, and they don't shoot much. Against the Elves, and especially against the Forest faction with their luck, they shoot a lot, and a multi-week growth bonus is useless for the Psu... So, either Hellhounds (after all) or Demonesses; with Grol, they look good with their Hellfire attack; I've tested it ---> he (Grol) needs to get luck and solar luck, and then he gets a useful perk:)(my reasoning about the Demonesses may be wrong... it depends on the player!).
...Let's summarize:
1.
If the succubi were recently built, you need rare resources to upgrade them, and it's difficult for a demon to acquire them on Veteran difficulty.
2.
If they have been acquired, then there is sulfur and mercury... and the question arises: maybe it's better to build Hellhounds instead?
3.
If not Hellhounds, then upgrade the succubi and save up for the Lords....
4.
If Hellhounds, then it simplifies the elimination of some ranged units.:smile13: Especially if there is a Tactics perk... a huge initiative is enough. Then, as quickly as possible, upgrade the Hellhounds and build a special building for their growth (possibly only if there is enough sulfur)..
5.
After that, build the Lords (if you have enough money and time).
6.
Devils are, of course, powerful and have good damage... but they are very expensive:)... I think that closer to the late game, if you have a normal army, you can build them, but I don't really want to buy them; you need to upgrade the others and send them into battle... when you have 6-7 Devils, it's best to buy them and bring them over... The problem might be that a week of sickness or plague comes along, and the little devils are gone...
P.S. Hellhounds become very effective when you have 16-20 of them, which takes about 3-4 weeks. By that time, the effectiveness of the succubi (if they are not Temptresses) fades, as others are still better. (Just take some Hellhounds with Hellfire and luck + the Hellhounds are also not standing still + the jumping demons are slightly catching up or opening portals + the succubi are doing their job, and our Imps are probably dead or barely alive by this time)!!!!