Introduction
Cor Memorial is one of the two daily instances introduced with the 17.1 Illusion update. In this instance, you will have to fight against various 17.1 monsters and the instance boss, EL1_A17T.
The Instance
- Talk to Rebellion at (sp_cor 113/130) and choose ‘Ready.’ Talk to them again to enter the instance.
2. Once inside, talk to Elena to start the instance. Eliumina’s instructions will then appear.
3. There are 4 boxes marked on the mini map. Move to each one, and opening a box will summon Eliumina’s machines, which must be defeated to proceed.
Note: Talk to Eliumina to confirm whether a box is cleared before moving on to the next one.
Steel Boxes will spawn a Bio Battery, along with 3 Bellare, E-EA1L, and Venenum.
If you make a Bio Battery self-destruct, it will spawn a Reinforcing Energy NPC that gives +20 All stats buff for 30 seconds.
Wooden Boxes will spawn a Chemical Poison, along with 3 Bellare, E-EA2S, and Venenum
 E-EA2S |
(Note: You don’t need to fight the Bio Batteries and Chemical Poison to proceed. You only need to eliminate the other monsters)
4. After all boxes are cleared, proceed to Eliumina and talk to sub-out Elena which is fighting EL-A17T.
Instance MVP
| EL-A17T | HP | Race | Size | Element |
|---|---|---|---|---|
 | 16,412,000 | Formless | Large | Neutral 3 |
EL-A17T has a unique mechanic where it has 2 possible types which are released at random and will spawn 4 entities on 1 in each cardinal direction (North, South, East, West).
- Bio Battery – Must destroy by stepping on or walking beside it.
Destroying all 4 will spawn a Reinforcing Energy NPC that gives a +20 All stats buff for 30 seconds.
Leaving at least one of the Bio Battery, it will strengthen EL-A17T.- Chemical Poison – Must avoid. It will release a poison cloud which will deal damage to players and heal the boss.
(Note: EL-A17T‘s notable skills are Agi-up, Hammerfall, Sonic Blow, and Critical Slash so be careful)
5. After defeating EL-A17T, speak to Elena and you will be rewarded with 1 
Cor Core and 5 
Mysterious Components or 1 
Damaged Weapon.
Instance Drops
| Item | Description |
|---|---|
EL-A17T Card | Has a chance to autocast Lv.3 [Hell Inferno] when dealing melee physical attack. Location : Accessory |
Cor Core | Used for crafting 17.1 gears and module exchange |
Damaged Weapon | Used for crafting 17.1 weapons |
Mysterious Component | Used for crafting 17.1 gears and module exchange |
E-EA2S Card | HP Recovery +50% Location : Accessory |
E-EA1L Card | Fire property magical damage +3%. If refine level is +9 or above, Fire property magical damage +2% additionally. If refine level is +11 or above, Fire property magical damage +5% additionally. Location : Weapon |
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