Tavlin has nether protection and shield at the same time in that log.

Was it once possible to use both simultaneously? Or do they just cancel each other out but you can put them both up?

You are affected by:
Skill: 'greater undead' for 42 hours.
Skill: 'lesser golem' for 42 hours.
Spell: 'aura' modifies armor class by -30 for 21 hours.
Spell: 'detect invis' for 21 hours.
Spell: 'despoil' modifies hp by 533 for 20 hours.
Spell: 'protection from good' for 16 hours.
Spell: 'armor of living bone' modifies armor class by -20 for 11 hours.
Physical effect: 'boneshatter' modifies dexterity by -9 for 8 hours.
Physical effect: 'boneshatter' modifies strength by -9 for 8 hours.
Physical effect: 'impale' modifies dexterity by -6 for 5 hours.
Physical effect: 'impale' modifies strength by -6 for 5 hours.
Spell: 'beckon druktrar' for 5 hours.
Spell: 'detect magic' for 5 hours.
Skill: 'cranial' modifies wisdom by -5 for 4 hours.
Skill: 'cranial' modifies intelligence by -5 for 4 hours.
Spell: 'shield' modifies armor class by -30 for 4 hours.
Timer: 'physical sleep protection' for 1 hours.
Timer: 'nether protection' for 1 hours.
Spell: 'barrier' modifies armor class by -80 for 0 hours.
Spell: 'detect artifact' for 0 hours.