Use Joint Operation when its displayed matrix pool matches a set you need.
PC / Global service; v6.4 live from Oct 20, 2026
WHERE & HOW TO FARM
Where to farm
Adventure > Joint Operation, using the current instance’s displayed matrix reward pool.
Joint Operation bosses can award random matrices alongside equipment. Matrix farming is therefore a reward-pool decision: inspect the selected instance’s current preview, spend Vitality only when the pool is relevant, then compare each drop with your active build. The cited reward information does not establish that the preferred-reward setting can target a particular matrix, so treat matrix drops as random.
Unlock the selected Joint Operation and meet its displayed difficulty requirement.
Have the Vitality required for the reward chest.
Join a team capable of clearing the selected instance.
Open the current Joint Operation schedule.
Select an available instance and inspect its matrix reward preview.
Compare the previewed pool with the matrix set or slot you are pursuing.
Choose a difficulty you can clear consistently and afford the displayed Vitality cost.
Clear the bosses with your team.
Open the reward chest only if its preview remains relevant to your target.
Check the matrix result and repeat on an appropriate rotation if the needed piece has not appeared.
Farming tips
Joint Operation matrix rewards are random; plan around the displayed pool rather than expecting a particular piece.
Preferred rewards are described as equipment selection; do not assume they guarantee matrix targeting.
Repeat, collect and use
Repeatable while the relevant Joint Operation is scheduled and you have Vitality. There is no guaranteed matrix drop established here, so each run may or may not advance the set.
Common mistakes
Entering an instance with an irrelevant pool: inspect the reward preview before queuing.
Treating a random drop as guaranteed: continue only while the expected pool is worth the Vitality.
Spending all Vitality on matrices by habit: compare the need with gold and breakthrough-material bottlenecks.
When to stop or switch
Stop when the needed matrix is obtained, the displayed pool changes, or another account upgrade has higher priority for your remaining Vitality.
