As someone keen on developing a campaign for a solo paladin PC, the lack of mosters that straddled the gap between minions and standard monsters bothered me a little, so I created my
own:
[SBLOCK]Adjunct monsters (which I have previously referred to as Demi monsters) straddle the gap between minions and normal monsters. They require less bookkeeping than normal monsters, but unlike minions, they have more than one hit point and are not immune to damage on a miss. However, a PC may still kill adjuncts in one shot with a critical hit. An adjunct may be modified from a minion and is equal to two minions.
To make an adjunct from a minion:
1. Change hit points to 4 + half Constitution score + 4 x level.
2. Remove the note that a missed attack never damages the monster.
3. Add a note that a critical hit reduces it to 0 hit points instantly.
4. Increase its damage by 50%.
5. Double the XP award for the monster.
The following is a sample adjunct, modified from the giant rat minion monster in the PH:
Alpha Giant Rat, Level 1 Adjunct
Small natural beast (XP 50)
Initiative +3
Senses Perception +5; low-light vision
HP 14;
Bloodied 7; a critical hit reduces an adjunct to 0 hit points instantly
AC 15;
Fortitude 13,
Reflex 15,
Will 12
Speed 6, climb 3
Bite (standard; at-will)
+6 vs. AC; 4 damage
Alignment unaligned
Languages -
Str 12 (+1)
Dex 17 (+3)
Wis 10 (+0)
Con 12 (+1)
Int 2 (-4)
Cha 6 (-2)
[/SBLOCK]