[Taqwus]

Something like 77hp, crazy magic (F4A4S4H4, if memory serves), awe, fire shield, sacred, melee attackers risk blindness, full slots, good stats. Not something you want to anger.

It's in the manual, under national summons -- Pythium or Marignon only, IIRC, something like 'Heavenly Choir'. That spell actually costs more than Wish, but it does come with more angels and you don't need to GoR the Seraph with the national summons.