So, yeah, mummy lords. This is a totally different league of monster from your rank-and-file mummy—and the power difference between a mummy and a mummy lord is much wider than that between an orc and an orc war chief, a hobgoblin and a hobgoblin warlord, or a gnoll and a gnoll Fang of Yeenoghu. Mummy lords are bosses on par with adult dragons and tougher than giants. Only experienced adventurers need apply.
Their array of powers makes them complicated to run, so this is going to be a long and thorough breakdown.
- Abilities: Average Dexterity and Intelligence; very high Strength, Constitution, Wisdom and Charisma. They’re brutes, but they’re not fools. And they have personality. Conceited, toxic personality, but personality nonetheless.
- Damage and Condition Immunities: same as regular mummies but with an added immunity to physical damage from nonmagical weapons. They’re not the slightest bit afraid of your pigsticker unless it’s got a plus in front of it.
- Damage Vulnerability: Fire, same as regular mummies.
- Saving Throws: Hefty bonuses on Constitution, Intelligence, Wisdom and Charisma saves. That’s two of the big three and two of the little three, and with Strength 18, it doesn’t need to worry about that one, either. The only gap in this fortification is Dexterity. However . . .
- Magic Resistance: Even its lower (only in relative terms) Dexterity isn’t too much of a hindrance, because it makes all its saving throws against magic with advantage. Whoo.
- Rejuvenation: You can’t even kill it unless you jump through the extra hoop of destroying its heart. (For this purpose, I recommend fire.)
- Spellcasting: More on this in a moment.
- Legendary Actions: Every turn, it can perform up to three legendary actions on other characters’ turns. These include an out-of-turn Attack, an area-effect blinding, an area-effect stun attack, suppression of healing and turning momentarily incorporeal.
- Lair Actions and Regional Effects: All the preceding applies if you happen to encounter a mummy lord on the way to the bodega to get milk. A mummy lord in its lair is even more powerful, conveying advantage on saving throws to other undead creatures in the lair, providing them with the equivalent of radar, and giving anyone else who tries to cast a spell a punishing necrotic jolt.
Like I said, a boss. With the attitude of a boss to boot. The mummy lord’s rational and justifiable assumption is that you ain’t jack.