I am sitting here wide eyed wondering why someone with no knowledge of summoning would want to jump right to one of the worst things you could summon o.O
*busts out the barbecue sauce*
For those that truly do wish to play around with such things, at least learn to banish first. If you wish to summon, by all means do so. However it is not the only way to interact with other beings.
.....I can tell you right now for a fact Shinigami are in fact real and I wouldn't suggest summoning one. No they don't have death notes but if you won't you're name on their note go ahead...I have never been so scared in my life of Shinigami don't do it
My point being?
1. Chaos magic is an incredibly deep rabbit hole. Conjuring a Death Note Shinigami isn't as far fetched as you'd think.
2. The egregore VS real entity debate is irrelevant. Why?
On one level to create a servitor you're using energy from the All. As such you're bringing something into being from the same core energy as the things that exist without human influence. On the other hand all entities have a bit of egregoreness to them as they are filtered through the monkey mind during evocation. Finally time doesn't matter on the level of spirits where time is a dot. Someone creating an egregore and then having that egregore appear in ancient Greece isn't very farfetched.
3. Shinigami exist independent of Death Note, AFAIK as angelic beings in Japanese lore which means that they aught to be summoned with proper subjective synthesis into Japanese magic.
4. There are much much much worse things one can summon besides Japanese death angels.
5. There are many possible benefits from working with shinigami than simply killing people. Occult death can be many things, including change, transformation, binding, time, hidden knowledge, etc.
