AbdulAlhazred
Legend
Yeah, 'tough' minions at 5+1/2 level are a pretty decent solution for parties where you have characters that can just mop up with wide ranging autodamage and whatnot.
Minions definitely are more dangerous at low levels, but I think they work reasonably well up into paragon. Eventually they do just become mooks though. The ones with ranged attacks or 'bomb' mechanics being somewhat better. Another use that comes up a good bit with minions is flanking, AA, or performing Heal checks on 'real' monsters. Overall minions work well, but you do need to consider each situation and what you want to get out of them.
In terms of what the OP is looking for, I think minions can be pretty handy for this kind of thing. I generally mix in a standard monster, or make the situation "minions with a standard or two coming in later" or something like that. Each situation is unique, I don't think there's really a single formula. I had a little mini-crawl for some level 2 PCs a couple weeks ago. I started out with 3 level 1 monsters (so a really weak encounter, but the monsters got surprise, so they actually did some good damage to the rogue). The next encounter was 3 level 3 minions and a level 2 swarm. Then a couple tricks and traps and a puzzle, and then a couple slimes and an ooze, which again was IIRC a bit of an underleveled encounter. Another trap, and then a full level+1 encounter at the end. The whole thing worked pretty well. The PCs went through it all from end-to-end. A couple of them were pretty beat up by the end of it, and they had fun. It seemed to have a pretty good 'old school crawl' feel. 4e is a bit more forgiving at low levels than AD&D would be, but that seemed OK to me.
Minions definitely are more dangerous at low levels, but I think they work reasonably well up into paragon. Eventually they do just become mooks though. The ones with ranged attacks or 'bomb' mechanics being somewhat better. Another use that comes up a good bit with minions is flanking, AA, or performing Heal checks on 'real' monsters. Overall minions work well, but you do need to consider each situation and what you want to get out of them.
In terms of what the OP is looking for, I think minions can be pretty handy for this kind of thing. I generally mix in a standard monster, or make the situation "minions with a standard or two coming in later" or something like that. Each situation is unique, I don't think there's really a single formula. I had a little mini-crawl for some level 2 PCs a couple weeks ago. I started out with 3 level 1 monsters (so a really weak encounter, but the monsters got surprise, so they actually did some good damage to the rogue). The next encounter was 3 level 3 minions and a level 2 swarm. Then a couple tricks and traps and a puzzle, and then a couple slimes and an ooze, which again was IIRC a bit of an underleveled encounter. Another trap, and then a full level+1 encounter at the end. The whole thing worked pretty well. The PCs went through it all from end-to-end. A couple of them were pretty beat up by the end of it, and they had fun. It seemed to have a pretty good 'old school crawl' feel. 4e is a bit more forgiving at low levels than AD&D would be, but that seemed OK to me.