Brave Orders
Brave Orders give the party a lasting bonus in exchange for Brave Points (BP). In Trails of Cold Steel III, any living party member's order can be activated on a party member's turn, even if its owner is in backup or cannot act because of a status effect.
How it works
Activation does not use the acting character's turn. Most playable characters have one order; Rean is an exception, with two to four available. The evidence does not identify individual order effects or costs, so consult the in-game descriptions when choosing an order.
When it helps
Use an order when its listed party bonus fits the situation and its BP cost is acceptable.
The tradeoff
The evidence establishes BP expenditure and lasting bonuses, but gives no specific costs, durations, or order effects to compare.
Your next step
Check the in-game order descriptions for the effect and BP cost before activating.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.