Keyblade
The Keyblade is the main weapon used by the player in Kingdom Hearts Unchained χ / Union χ.
Each Keyblade starts off with 3 Medal Slots which serve to add different types of Medals on them to make them stronger and use different types of attacks and skills, after upgrading a Keyblade to a certain level, new Medal Slots will be unlocked on the Keyblade, up to a maximum of 5.
When upgrading a Keyblade, Medal Slots will feature Attribute Boosts, which give damage increases to specific types of Medals. Each Keyblade also has a hidden modifier to the strength of the Friend Medal equipped to it, regardless of attribute.
In the game you can gain materials to upgrade Keyblades, as well as change their appearance and increase the quantity of Medal Slots.
While Medals grant the overall strength of a Keyblade, if players equip Medals that exceed the overall Medal Cost, they won't be able to use the Keyblade until switching to a Medal with lower Cost.
When a Keyblade is used without Medals, the player uses Stock Medals as placeholders.
Keyblade List
When players reach a certain point in the story, they will be granted different types of Keyblades.
Subslots
In Version 2.6.0, Subslots were added to Keyblades. Each Keyblade has a set of 120 Subslots, which can be filled with 7★ Medals matching the slot's attribute to provide a small multiplier bonus to the entire Keyblade. The bonus multiplier provided depends on the Special Attack Bonus Level of the Medal.
| SAB Level | Multiplier |
|---|---|
 |
+0.001% |
 |
+0.002% |
 |
+0.005% |
 |
+0.008% |
 |
+0.012% |
 |
+0.016% |
 |
+0.020% |
 |
+0.025% |
Materials
Mythril Shard
Mythril Shard (ミスリルのかけら Misuriru no Kakera) are obtained, one at a time, for completing the third objective of each Story Quest and each permanent, non-VIP Special Quest. See here for a full list. Three Mythril Shards are needed each time the Player strengthens a Keyblade between +1 and +25, and as Mythril Shards are finite in number, they cannot be sold.
Power Gem
Power Gems (つるぎの魔石 Tsurugi no Maseki, lit. "Sword Gem") are used to strengthen Keyblades starting from level +25. The first Power Gem was available as a reward in the Coliseum Challenge Duel Powerful Enemies and Level Up your Keyblades! event, eventually becoming an extra in some Premium Event Avatar Boards and a reward for a Weekly Solo Ranking.
Speed Gem
Speed Gems (つばさの魔石 Tsubasa no Maseki, lit. "Wing Gem") are used to strengthen Keyblades starting from level +25. The first Speed Gem was available as a reward in the Coliseum Challenge Duel Powerful Enemies and Level Up your Keyblades! event, eventually becoming an extra in some Premium Event Avatar Boards and a reward for some Weekly Solo Rankings.
Magic Gem
Magic Gems (しんぴの魔石 Shinpi no Maseki, lit. "Mystical Gem") are used to strengthen Keyblades starting from level +25. The first Magic Gem was available as a reward in the Coliseum Challenge Duel Powerful Enemies and Level Up your Keyblades! event, eventually becoming an extra in some Premium Event Avatar Boards and a reward for some Weekly Solo Rankings.
Sun Gem
Sun Gems (たいようの魔石 Taiyou no Maseki) are used to strengthen the Upright Proud Mode Keyblades starting from level +25 all the way to level +36. The gems are exclusively gained through the level 400+ Proud Quest: Power, Magic or Speed event quests.
Moon Gem
Moon Gems (つきの魔石 Tsuki no Maseki) are used to strengthen the Reversed Proud Mode Keyblades starting from level +25 all the way to level +35. The first Moon Gem was available as a reward in the Coliseum Side-Quest: Moon Gem Cup event.
Electrum Ore
Electrum Ore (エレクトラム Erekutoramu, lit. "Electrum") are obtained, one at a time, for completing objectives in Proud Mode. See here for a full list. Various quantities of Electrum Ores are needed each time the Player strengthens the Sleeping Lion, Counterpoint, and Fenrir Keyblades, and as Electrum Ores are finite in number, they cannot be sold.
Dark Matter
Dark Matter (ダークマター Dāku Matā) are obtained, two at a time, for completing objectives in Proud Mode. See here for a full list. Various quantities of Dark Matters are needed each time the Player strengthens the Darkgnaw, Missing Ache and Diamond Dust Keyblades, and as Dark Matters are finite in number, they cannot be sold.
Other Materials
All other Materials can be gathered during quests by passing over sparkling patches of ground. These materials are generally found in locations appropriate to their substance; for example, vials of Spring Water can often be found in fountains or along rivers, while Curative Flowers can be found in flowerbeds. Though some materials can be found in multiple worlds or can be used to strengthen multiple Keyblades, most of these materials are used for specific Keyblades and are primarily found in the respective world. The materials needed for each Keyblade can also be easily farmed in the appropriate series of Keyblade Materials Special Quests. The Player is also able to sell their excess farmable Materials for 10 Munny per unit.
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Past Materials
These materials were required for upgrading Keyblades until they were removed in Version 2.6.0. Any materials obtained before the update are still in the Player's inventory.
Orichalcum
Orichalcum (オリハルコン Oriharukon) were obtained, one at a time, for completing every 25 Story Quest, as well as for completing the third objective of Proud Quest: Power LV 45 and completing the first objective of A New Keyblade: Moogle O' Glory. See here for a full list. One Orichalcum was needed to unlock the fourth slot of any Keyblade and another two for the fifth. As Orichalcum were finite in number, they can't be sold.
Adamantite Ore
Adamantite Ores (アダマント Adamanto, lit. "Adamant") were obtained for completing the first objective of each Adamantite Ore Challenge Special Quest. See here for a full list. One Adamantite Ore was needed each time the Player strengthened a Keyblade between levels +21 and +25, and as Adamantite Ores were finite in number, they can't be sold.
Mythril Stone
- "A stone made from mythril ore."
Mythril Stones (ミスリルのしずく Misuriru no Shizuku, lit. "Mythril Drop") were occasionally obtained from Rare Prize Boxes, and could also be easily farmed in the Mythril Madness: Mythril Stone Special Quest. Mythril Stones were needed to strengthen each Keyblade at specific levels, and excess Mythril Stones could be sold for 50 Munny.
Mythril Gem
- "A gem cut from mythril ore."
Mythril Gems (ミスリルの魔石 Misuriru no Maseki) were occasionally obtained from Rare Prize Boxes, and could also be easily farmed in the Mythril Madness: Mythril Gem Special Quest. Mythril Gems were needed to strengthen each Keyblade at specific levels, and excess Mythril Gems could be sold for 100 Munny.
Mythril Crystal
- "A mysterious crystal made from mythril ore."
Mythril Crystals (ミスリルの結晶 Misuriru no Kesshō) were occasionally obtained from Rare Prize Boxes, and could also be easily farmed in the Mythril Madness: Mythril Crystal Special Quest. Mythril Crystals were needed to strengthen each Keyblade at specific levels, and excess Mythril Crystals could be sold for 150 Munny.