Cleon
Legend
The next one I need to get cracking on is the troglo-wight (what happens when you have a stone giant lich creating minions out of underdark peoples):
Hmm, a regular troglodyte is Chaotic Evil so I'm not sure about the Neutral Evil alignment.
Shouldn't the Languages be Troglodyte as that's what it knew in life?
Trogs have an unimpressive CHA 6 so CHA 12 seems rather extreme. Why is it high enough to provide a bonus?
The STR and CON seem too high, I'd just give them the same bonuses as a regular Wight. A regular Wight was not an ordinary peasant in life according to the Monster Manual's flavour text, so probably started with above average stats. I doubt many of them were peasants with 10s in all their stats and Wights get +4 STR, +4 DEX, +4 CON as a perk of being undead.
Oh, it's not important but you've got one odd stat (WIS 11) and every other ability score is an even number. Curiously, the SRD Troglodyte has entirely even abilities and its WIS is 10. Maybe the Troglowight has all odd abilities to balance that out. It's truly an abomination!
Would advise against having all three attacks of its Multiattack potentially cause exhaustion. Presumably the PCs are meeting them in groups, so the levels of exhaustion could pile up quickly.
Would prefer if they had a separate Life Draining attack like a standard Wight, or failing that if only one of their Multiattacks caused exhaustion. Maybe the Bite?
Would consider including the poisoned condition in Necrotic Stench rather than drop it. Disadvantage on attack rolls is quite effective and can be more impactful than a few points of necrotic damage. If you're keeping CON at 18 the save DC should be 14 not 12.
I'm also wondering how a successful save makes you immune to this specific form of necrotic energy, isn't that like being burnt and your constitution developing a temporary immunity to a particular kind of fire?