As with many practitioners of Necromancy, the subtle alterations an individual puts into practice in their spellcraft can produce some rather interesting results. For example, some seasoned summoners attribute their extended control timer over a corpus to the slightest of somatic variations, while others swear by the use of Comanthyran grave dust as an additive to their material costs.
Whatever the means to reach these results, one thing is clear: the summoning and control of servile undead can be fortified through several ways and means of magical and non-magical additions to the casting of the spell. Compiled below are examples of several tested and verified methods of enhancement we can reproduce in a controlled environment:
-Cormanthyran grave dust added to material component cost can increase the summoned time before another cast of control is needed
-Several variations of ancient druidspeak, and even a Calmishan Cant variant have been observed to bolster the constitution of summoned servants.
-Scribing the spell with certain intertwining dialects have shown promising upcast strength applications, most notedly when Draconic and Abyssal verbal components are written or spoke in alternating patterns.
-Casting the spell through a focus gilded in precious metals and various gemdust etchings can even affect the length of control, strength of the servant, or even the number of thralls one can obtain through a single casting.
This provided Edwin's bonus to undead minions