Board Thread:General Discussion/@comment-6740992-20130419014039/@comment-5945589-20130521140633

Scroll down in the summons page. ;)

Anyway, rare summons is more useful when you are at lower levels since your daemons aren't that good, and spending on items don't really give you much since your stats are low.

Furthermore, even if you get 3* then, they could be your foundation to progress further in the events. ;)