In the same room as the Remembrance Crystal chest, you’ll find a Reckless enemy. Killing it will give you another chance to get a Remembrance Crystal. ..
Since this Heartless is in the Cavern of Remembrance, you’ll want to max out as many Drive Forms as possible (at least get the highest level of Glide).
Remembrance Crystal Farming
The Remembrance Crystal can only be dropped by one enemy: the Reckless Heartless, found in the Engine Room in the Cavern of Remembrance. ..
Crystal shards are a common item in the game, and can be found in various places. They have a 12% chance to drop from enemies or bosses.
Lucky Strike can increase your chances of success when farming this enemy. You’ll likely have time to synthesize some Lucky Rings too.
One other good thing about farming here is that these heartless immediately respawn once you leave the room.
You can clear out the Reckless in the Engine Room, then head back to the previous room (the Mineshaft) and immediately re-enter.
If you want to maximize your chances of finding Reckless Heartless, you should have them spawn as soon as possible. ..
The most difficult part of farming these crystals is probably just getting through Cavern of Remembrance in the first place.
Remembrance Crystal Uses
The Remembrance Crystals are necessary materials for a few synthesis recipes.
Most people are pretty good, so let’s have a look at what you can make.
Shadow Archive is a replica of the weapon used by Zexion. It offers +3 magic and +5 AP to any party member who equips it. ..
You can synthesize the Absent Shadow by defeating Zexion’s absent silhouette. To create it, you’ll need x1 Lost Illusion, x1 Manifest Illusion, x1 Remembrance Crystal, and x3 Serenity Gems.
Shadow Archive+ – If you have a LV3 Moogle and an extra Serenity Crystal, then you can synthesize this upgraded version of the Shadow Archive, which adds the MP Rage ability. This allows you to deal more damage with your MP attacks.
To create a new Serenity Crystal, you will need all of the same synthesis materials as the original crystal, plus an x1 Serenity Crystal. ..
Donald’s strongest weapon is his Centurion staff. It has +13 strength and +3 magic.
You can synthesize it only after defeating Lexaeus’ absent silhouette. For actual materials, you’ll need x1 Lost Illusion, x1 Remembrance Crystal, x3 Remembrance Gems, x5 Remembrance Stones, and x7 Remembrance Shards.
The Centurion is a powerful weapon that can be upgraded with the help of a LVL3 Moogle and a Serenity Crystal. This will add the ability Damage Control. ..
Again, this requires the same materials as the Centurion above, plus x1 Serenity Crystal.
Serenity crystals are an extremely valuable synthesis ingredient that are used to upgrade weapons and accessories into their + forms, and sometimes to create entirely new items. ..
To craft a new Serenity Crystal through synthesis is quite a feat, requiring a LVL8 Moogle and x1 Tranquility Crystal, x1 Remembrance Crystal, and x9 Bright Crystals.
The Manifest Illusion is an upgrade to a Serenity Crystal. It increases the user’s ability to see through illusions, making them more able to navigate their environment.
The Serenity Crystal is also used in a lot of recipes. You’ll need the same materials as the Serenity Crystal, but with an added Serenity Gem.
In KH2.5, collecting all “Remembrance” Materials will reward you with a Serenity Crystal.
Are These Worth Farming?
The Centurion and Shadow Archive are definitely worth the investment.
Both items are useful in battle and can give you an edge over your opponent. If you want to take Donald more towards brute force strength, then the ring may be a better option for him.
Crystal farming is a relatively easy task if you want to obtain just one or two crystals. ..
If you’re looking to upgrade your synthesis items, it may be in your best interest to try and grind a few more Remembrance Crystals. ..
That said, there are other ways to obtain more Serenity Crystals aside from synthesizing them. ..
The Remembrance Crystals needed to make their recipe only amount to a small fraction of what is needed for other recipes. ..
In this scenario, I’d say it’s really up to you to decide how much you’d like to farm.
