To be back on topic. I still don't see mummies as that weak of a species. It's just except the rPois+, none of their innate bonuses help in the early game...
Being hungerless can be huge if you are of Sif in mid-game; letting you, perse Spam Shatter instead of being able to cast it 3 times before needing food.
Having essentially lichform earlier than anything else makes doing tomb as your second or third (or even first BEFORE the rune lock was in place) a trivial affair.
Shadow Dragons, other undead and liches with their draining attacks are far less or a threat.
If we see gargoyles as the 'permanent statue form' species; then mummies are the 'permanent lich form' species; the most fitting bonuses therefore would be to add the three things lichform has that mummies don't:
- Draining UC/claws 1 (trivial, unless you train against a bad UC apt)
- +6 base AC (pretty useful)
- And higher than average MR (+50 for the form) [they currently have the same as humans.]
The two levels of Necromancy boosting does make reaching the spellpower cap on level 4-7 Necro spells easier; though the second booster is gained so late so as to not really matter (level 26).
And I do think, since spellcasters are so fragile, especially when magic skill is low and a low-skill beatstick is better: though probably worse in the long run; Monk, Zealot (except Trog) and Warrior-Mage starts are the best spawn-ins to survive the early game.
I'm beginning to feel like a Cat God! Felid streaks: {FeVM^Sif Muna, FeWn^Dithmenos, FeAr^Pakellas}, {FeEE^Ashenzari, FeEn^Gozag, FeNe^Sif Muna, FeAE^Vehumet...(ongoing)}