During the Crystal War, these military tacticians often served as high-ranking officers in allied forces across Vana'diel. Extensive knowledge of ancient martial theory granted Scholars (SCH) the ability to wield dual schools of magic, between which they would alternate depending on the situation at hand. Available after completing the quest, A Little Knowledge.
The abilities available within Stratagems correspond to the type of Arts the scholar currently has activated. If the Scholar does not have an Arts effect active, no abilities will be displayed.
Stratagems do not have a recast time. Instead, they work off the charge based system. A Scholar consumes a charge when they activate a Strategem. After a certain amount of time, the charge is refreshed. The maximum available charges, and the amount of time until a new charge is refreshed is based on the Scholar's level. (see table)
When using the "/recast" text command with a specific Strategem (such as "/recast Celerity"), it will display the amount of time remaining until a new charge is generated, as well as the current number of charges available.
When displayed, it will appear like this: [Celerity] 1:13 (2)
Active stratagems will remain available for up to one minute or until a spell compatible with them is used. Spells cast that are incompatible with an activated Stratagem will have their normal effect.
Addendum: White and Addendum: Black are exceptions to this rule. Once active, they modify your current arts effect and remain active as long as that Arts effect is active.