Ritual

Rituals are ceremonies consisting of a series of actions performed by magic casters in the New World.

Background
Tier Magic is the main magical craft that flourishes the New World. Despite years of study and research, the inhabitants of the New World barely comprehend its power. Whereas the Players, who originally brought its power, could cast spells of the 6th tier and beyond, the average magical skill in the New World is at 2nd or 3rd tier.

Additionally, rituals are considered as magical ceremonies that could bypass those limitations. They enable magic casters working in unity to achieve levels of magical phenomena that can't be normally acquired in living time. Magic Casters in the New World utilize rituals as a means to reach and utilize magic spells of the 6th Tier Magic and possibly beyond.

Mechanics
Rituals vary in use and purpose, the necessary components depends on several factors: skill of the focal user, special items, types of magic etc. However, fundamentally, the purpose of all rituals are to temporarily increase one’s magic power by concentrating the magic power of a group into one person.

List of Rituals

 * Death Spiral
 * Planar Eye
 * Ritual of Holy Fire

Trivia

 * The Lizardmen Alliance used some sort of unnamed ritual-type magic in summoning Swamp Elementals during their war against Nazarick's army of undead.
 * So far as the Light Novels have shown, the nations of the Slane Theocracy and Roble Holy Kingdom are known to actively use rituals.
 * Wild Magic also utilizes rituals as explained in Volume 9.