For class and skill EXP, the documented farming method is to enter a dungeon Clash, perform useful attacks and retreat before the repeatable enemy encounter is exhausted. The proficiency you earned remains after Retreat, allowing another attempt against the surviving encounter. This is a method for class mastery and weapon or magic proficiency, so do not mistake it for a promise of unlimited ordinary character levels.
Start by identifying the class mastery or skill rank your character needs. A weapon proficiency requirement, a class mastery bar and the character's level are separate targets, even when the same battle contributes to several of them. Consult the class overview before spending time on a proficiency that does not serve the build you actually intend to use.
Set up the training target
Equip the class whose mastery you want and a weapon matching the proficiency you intend to improve. Jay Dunna's class and skill XP demonstration uses low-damage weapons to keep enemies available while progression accumulates. Wooden weapons are useful here because ending the encounter quickly is the opposite of the immediate training objective. Check the movement-type restriction in LinkKing7's version below before choosing a class for that loop.
KeenGamer's weapon and magic EXP guide describes the same basic tradeoff. A weaker weapon can give you a more manageable repeatable target, while an overpowered attack risks clearing the pack you planned to reuse. Choose the setup from your actual damage and survival prospects rather than copying someone else's demonstrated level or assuming every dungeon enemy is equally suitable.
Enter a real Clash
Walk into the dungeon encounter normally so the Clash actually opens. KeenGamer warns that Strike to Skip can immediately resolve a weak field encounter when your party is substantially stronger than the enemy. That resolution removes the combat actions you were trying to perform for proficiency in the first place.
Once inside, use normal attacks with the intended weapon type and watch what happens to the enemy group. You need an encounter that survives long enough for productive actions without putting your party into an unsafe state. If a character is dealing too much damage, choose weaker equipment, reduce the actions taken before Retreat or find a more durable encounter rather than repeatedly clearing your own training target.
Retreat while a reusable encounter remains
Select Retreat before the encounter is completely finished. Both the written guide and Jay Dunna's demonstration explain that the experience gained remains after withdrawing, which is the mechanic making repetition useful. Return to the relevant enemy encounter and repeat the process, checking that it remains available rather than assuming every battle can be restored after full completion.
The video also demonstrates engaging multiple enemy groups together. Having another group in the same Clash provides room to withdraw even if the first group falls to an unexpected critical or an overly strong attack. This is a practical safeguard shown by the creator, rather than a guarantee that every party can safely absorb the combined encounter.
Account for the per-Clash cap
LinkKing7's later class-leveling investigation reports that skill, class and movement experience in Clashes stops accumulating after fifteen combat rounds. The creator specifically revises an earlier understanding and rejects the idea that an indefinitely sustained sandworm fight produces indefinitely increasing proficiency. The useful lesson is to restart the earning opportunity rather than spend an entire session extending one encounter beyond its reported limit.
The creator's demonstrated approach advances the Clash, then retreats and re-enters. LinkKing7 explicitly excludes flying and cavalry units from the setup he describes, so do not assume his loop applies to those units. Its measured results depend on the character, equipped class, applicable Boons and demonstrated conditions, so they should not become a universal experience-per-minute promise. If your bar stops moving, inspect the setup and the number of rounds already spent before assuming that a longer fight must eventually solve the problem.
Treat magic as a limited resource
Magic proficiency can use a similar retreat loop, but spell availability changes the planning. KeenGamer explicitly states that Retreat preserves earned proficiency without fully restoring expended magic uses. A spellcaster therefore needs a restoration plan, even if the physical attackers can keep using inexpensive weapons against the same surviving enemy group.
Use the dungeon's appropriate Rest Spot and available food when magic needs replenishing. The guide also describes Recovery Link as a way to gain White Magic proficiency while another character attacks, with Link Points as an additional limit. Rest Spots replenish HP and magic using food according to that source, but do not restore Link Points, so a linked healing loop has a different stopping condition from an ordinary weapon loop.
Buy bonuses for battle progress
Separate proficiency Boons exist for different weapon and magic categories. Game8's Boon explanation describes these as extra skill experience from battle and explicitly excludes training. That distinction makes them relevant to this Clash method while preventing an assumption that the same bonus increases every activity with the word training in its menu.
Choose the bonus corresponding to the rank you are working toward. A character preparing a magic certification gains no direct answer to that requirement from an unrelated physical weapon bonus. Use best classes as a starting point for a build decision, then compare the actual requirements and your roster before committing shards to a particular training plan.
Check progress before extending the loop
Jay Dunna demonstrates checking class progress through the character screens and proficiency through the inventory information. Use those displays after a short session to confirm that the intended bar is moving. This is especially helpful when the character has several simultaneous progression systems and an ordinary level number does not reveal the benefit you are seeking.
Stop at the rank or mastery that serves your next goal, then return to the battle preparation that made it useful. A class mastery can be valuable without requiring you to spend every subsequent level in that class, and the video's stated purpose includes gaining a mastery without pursuing ordinary leveling there. Keep the story progress guide nearby if an extended training session risks distracting from the route objective you meant to prepare for.
Affinity, equipped class, bonuses, enemy survival and spell availability all affect this setup. Those differences make checking your character's actual progress more useful than assuming another player's completion time will apply unchanged. Those limits still leave a clear actionable method: create a survivable encounter, earn the intended progression, retreat while it remains reusable and verify the result before repeating.