Ritual

Ritual's are large kingdom wide spells that require many casts to provide powerful bonuses to the whole Kingdom for multiple Utopian Months. 
Monarchs and Stewards can, start, complete and abandon a ritual. Spy on Throne and Crystal Ball shows any active ritual affecting a province and its strength. 
== Starting a ritual ==
The monarch or steward must choose from the available types of ritual:
Types of Ritual
Ritual 	Bonuses
Barrier 	
* -20% Damage from Enemy Instant Magic & Thievery Operations
* -10% Combat (Resource) Losses
Expedient	
* -20% Military Wages
* -20% Construction Cost
* +10% Building Efficiency
Haste 	
* -10% Attack Time, 
* -25% Training Time, 
* -25% Construction Time
Havoc 	
* +20% Offensive WPA, 
* +20% Offensive TPA, 
* +10% Spell Damage, 
* +10% Sabotage Damage
Onslaught	
* +10% Offensive Military Efficiency, 
* +15% Enemy Casualties
Stalwart 	
* +5% Defensive Military Efficiency, 
* -20% Casualties
== Casting A Ritual ==
To complete the ritual, the Kingdom must successfully cast the ritual spell a minimum number of times in 48 Utopian Days from the ritual starting. Each ritual cast has a difficulty similar to the most difficult self-spell, a very expensive rune cost (Cost Multiplier 6) and costs 2% Mana per cast.
The minimum number of ritual casts needed is three times the number of Provinces in the Kingdom or 45, whichever is larger. A Ritual can be cast more than the minimum to provide increased effect.
 Ritual Effect = 1 + (2*SQRT( casts - MAX(45,KD_provs*3) )) /100
The effect of a ritual applies to all bonuses it provides, for example Onslaught at 100% effect provides +10% OME and +15% enemy casualties while Onslaught at 110% effect provides +11% OME (+10% * 1.1) and +16.5% enemy casualties. 
While casting a ritual, the Kingdom's Ritual page shows:
*The type of ritual selected
*the province's current mana level and the rune cost to cast on the ritual
*The cast button
*When the ritual was started and how long the kingdom has to complete the ritual
* the effect of the ritual at the current number of casts (once above the minumum)
== Completing a ritual ==
A Ritual will automatically complete 48 Utopian days after it is started, or can be completed early by a Monarch or steward. 
One completed a ritual's effect applies to all provinces in the kingdom. This effect decays .25% per tick.
Completed Rituals last for at least 48 Utopian days and a maximum of 120 Utopian days. While only one ritual can be active, another one can be started before the active ritual ends, very similar to Dragons. Once the ritual is completed, the previous ritual will be replaced. Rituals can also be abolished by an enemy Kingdom. 
Once completed the Kingdom's Ritual page shows:
* The current active ritual type 
* The ritual's current effect
* The ritual's current strength
* The time since the ritual was completed and when the ritual will be automatically removed.
== Abolishing A Ritual ==
Rituals can be destroyed by enemies using the Abolish Ritual spell. Rituals start at 100% strength and each abolish Ritual cast reduces the strength of the Ritual by 2 percentage points. Province strength should not be confused with the rituals effect as these are independent. a ritual at 2% strength can still have >100% effect. 
Abolish Ritual can only reduces ritual strength for the first 10 successful casts each province. Further casts after 10 successes can still show as successful but will not affect ritual strength. To destroy a Ritual 50 total casts are needed spread across at least 5 different provinces, for example 5 provinces each receive 10 abolish ritual casts or 10 provinces each receive 5 abolish ritual casts.
Once a Ritual reaches 0% strength it will be abolished, unless it has not reached it's minimum duration of 48 hours. If a ritual reaches 0% strenght and is less than 48 Utopian days old it remains in place until 48 Utopian days when it is automatically removed.
Historic information on changes to rituals and retired ritual types can be found on History of Stances and Rituals.