Summoning Deities

This refers to a set of rituals that summons Gods from various pantheons. Only two gods have been summoned willingly in the Supernatural Universe.

Summoning Zeus
Zeus could be summoned to earth by a ritual exclusive to him. Zeus could be summoned into a trap and was vulnerable to the wood struck by lightning.

Two things were required before one could summon Zeus.
 * 1) Frozen energy from the hand of Zeus (more commonly known as Fulgurite which is used to make cheap jewelry).
 * 2) Bone of a worshipper.