I have an inscribable req 11 with the following details:
Adept Soul Spire of Shelter
Halves recharge of spells (20%)
Energy +10
Dark Damage 11-12 (requires 11 SR)
Halves casting time of SR spells (20%) (adept mod)
Armour + 7 (vs physical Damage) (shelter mod)
Inscription: +15% damage while above 50% health
I have req 9 Soul Spire:
Energy +10
11-22 Dark damage
Half spell recharge of spells 20%
Half cast time of spells 10% (Swift staff head)
"Don't call it a comeback!" 7energy under 50% health (Inscription)
Damage +19% vs undead (of Deathbane wrapping)