Summoning spells are typically cast or are tied to the basic magic item pack of jewels, rods, and so forth. Summoning devices take the same concept and tie the spell to a weapon, shield, or piece of armor.
Weapons and gear used by the antagonists of the Spider City scenario
Ludicrous gats and more!
As you travel through the thick growth of a forest, a great shadow suddenly moves over you. You raise your head fast, but whatever it was, it was faster. However you try, you don't see anything, and nothing approaches you. Maybe it is better so.