Spell of Gathering

The Spell of Gathering is an incantation used to "focus the power of celestial beings" like Angels against all drawn forms of evasion." This spell was designed to clear all mystical or occult blockages that prevent divine interferences from doing.

The spell was developed by Men of Letters, and this is very highly theoretical magic and never been used before even until the order destruction in 1958. The spell even able running against time-space laws. Lucifer used it to pull Dean from 1944 to 2016.

Procedure
The spell using various ingredients that very easy to obtain in daily life: a dried sea horse (cut into two), a calf brain, a dried gecko, several cuts of tuber, a handful of kelp, some grain and nuts, olive oil, liquors. The ingredients must be mixed in a bowl atop a sigil consisted with enochian runes. The last ingredients is the power of an archangel, which very difficult to be obtained, which ironically, Lucifer himself. The spell could be more powerful if powered by combination of the powers of Archangel (Lucifer), Seraph (Castiel), and Human's soul (Sam).

Appearance

 * Season 11
 * The Vessel