Alter Aeon Online Help

Keywords are:  'necromancer spell pledge demon'

Spell: pledge demon             Mana:  52  Int: 29  Wis: 27  Lvl 26 Necr  (28%)
                                (obscure)   Requires: shadow fiend
                                Group: Necromancer Demonlore
                                
                                Speed: average

cast pledge demon <demon>

This spell is used to enter into agreements with demons that you did not
summon. To make a pact with a demon, soulstones are required as payment.

This is done in two steps:

1) Cast 'pledge demon' to extend a magical pact to the demon.

2) Give the demon a soulstone to bind the pact.

Higher level soulstones will keep demons bound for a longer period of
time, and higher level demons require soulstones more often to remain
bound to you.  You can give the bound demon soulstones at any time to
maintain the binding.  Players with a higher cast level will find the
demon easier to control and will remain bound for longer periods of time.

Note that demons that you summon yourself do not generally require
a constant supply of soulstones.

Bound demons require a lot of control, 1 point per primary level.