How about you give hordes a very low dex.(Hordes can't dodge) Which would reduce AC to the point where you can't miss. And give them damage vulnerability to melee attacks and area attacks.
And then different type of attack depending on if the HP total. While above half they get an trample...
The stuff I've tried.
Short rests five mins,no more than 2 per long. Long rest 1 hour, no more than 1 per 24 hours. Speeds up healing/gameplay without giving to much to classes than regain alot from short rests. As PCs get to higher levels they are all trying to find periapt of wound closure...
we use crits, with crit deck cards.
A few years a go I spent some time looking into what my players like the most and/or found most memorable about my games. And discovered random events are pretty popular. Since then I've been trying to embrace more random things. And if the combat is more...
To get the most out of the campaign the party should be Constables. However being a cop isn't like being a normal PC. So try and get the players into Constable/investigators mode as soon as you can. Especially as there some great investigation adventures.
Take a lot of notes about what happens...
So far I haven't settled on an approach.
I've tried finding/giving out a lot less money. Letting them buy whatever using sane magic prices. And I've tried a level tax. And I'm not really satisfied with any of those. So I'm probably headed towards a 3rd ed approach.
We are starting up playing our 5E DnD game post virus and we are looking for one or two players.
I'm about 30 minutes south of Albany. We play twice a month either Fridays or Saturday evenings.
If your interested get in touch.either PM message me or leave a post.
where i've done this I don't really structure it. I keep 3 or 4 vague quests ready at any one time , and constantly throw chum in the water for the players to follow. And just make up everything up as I go.
I would go with dropping the mage,archer and a knight. Which would give you a total CR 16 ,which is a tough encounter. And still give you 5 monsters.
Looking at the style of problem your dealing with , try reskining a lower CR monster to replace the ones your using. Change the knights to...
I believe Michael Shea had an article about this subject on his site, which may help.
My advice don't worry to much about small adjustment to AC ,HP etc. Try and get the total CR of the monsters in a range that works for you and your players.
With 3 PC of level 5. I'd be looking for a total...
I've Dm'd a few Egypt themed campaigns, and Conan. And played in one with Romans.
Generally players, especially my current group as you said don't get the vibe. The problem seems to be with technology and social issues. I could probably make it work better if I make the setting my modern.
I think from a practical point of view.
Start with the short core concept. what you tell the players about the world they are in.
And then things they will ask or need to know when they start making characters.