Abyss Den

Category:Game Modes
The Abyss Den is a PvE play-mode that is unlocked at Player Level 88. Similar to the Underground (Story), players can battle various predefined armies on a path of 3 nodes per chapter. It is closely related to the Eternal Crown and Talent Constellation for which it provides the necessary currency.
=How to Access=
Go to the World Map - there is an icon on the bottom left corner that reads "Abyss Den".
=Tickets=
In order to battle enemy formations, players must buy and spend "Abyss Den Entry Tickets" and "Abyss Trial Entry Tickets".
==Abyss Den Entry Tickets==
These tickets are used for regular battles inside chapters. They regenerate just like energy at a 1 ticket per 2 hours and there is also a maximum limit depending on VIP level.
You can also purchase tickets up to eight times every day, each purchase resulting in 5 tickets being bought at a time (so a maximum of 40 tickets per day).
 
Purchase Number	Cost	Tickets Acquired
1 	Free	3
2 	20 	5
3 	50 	5
4 	50 	5
5 	200 	5
6 	200 	5
7 	400 	5
8 	400 	5
==Abyss Trial Entry Tickets==
These tickets are used for fighting in an Abyss Trial. You can purchase up to four times every day, each purchase costs 1500 and result in 1 ticket being bought at a time.
=Abyss Chapter=
Each chapter consists of 3 sub-chapters where the player must fight against predefined enemy formations.
This is a not a recurring play mode, so progress is permanent for each player individually.
Note that higher power players may begin this play mode at a higher level as a one-time only start, with all previous battles maxed out and rewards claimed automatically without any cost.
Chapter progress is unlocked depending on Player Level
Chapters	Minimum Player Level
1 	88
2 	89
3 	91
4 	93
5 	95
6 	97
7 	99
8 	101
9 	103
10 	105
11 	108
12+ 	110
==Sub-Chapters==
* Fighting in a battle costs 6 and additionally 1 "Abyss Den Entry Ticket"
* First time beating a sub-chapter, however, reimburses 1 "Abyss Den Entry Ticket"
* You need to win battles in sequence, at least once, before you can sweep
* You can sweep a battle as many times as you want, assuming you have enough currencies
* Farm sub-chapters to obtain Resplendent Dust (used in Eternal Crown) - amount increases with the chapters
* First time beating a sub-chapter also allows the player to claim Sunlit Dust
* Each sub-chapters features 3 stars that can be obtained by completing quests (while winning the battle)
** One of the stars is always obtained by beating the sub-chapter
** The other two stars feature quests specific to each sub-chapter
==Formations==
Formations have no restrictions whatsoever - any hero or units can be used regardless of faction and there are no faction bonuses specific to the play mode. War Machines are enabled as is Backup Formation, Formation Support and Adjutant.
Until Chapter 20, the player must battle only one enemy formation and can employ an 8-unit formation of its own. Starting with Chapter 20, two 8-units formations are required, similar to Trial of Angels.
==Chapter Reward==
Just like in Underground (Story) and Main Story, there is a progress chest that can be obtained after completing all sub-chapters with a 3* score.
Progress chests reward players with additional Sunlit Dust
==Quests==
Here is a list of all possible sub-quests for each chapter (will show up in various combinations). The more difficult versions become prevalent at later stages.
* Lose 2/1 or less units
* Cast 3/2 or less ultimate Spells
* Finish the battle in less than 90s/60s
* Kill an enemy unit in the first 60s/45s of battle
==Chapter Rewards==
Chapters	Per Fight	First Win	In Chest
1-3 	25 	11/11/33 	110
4 	28 	11/11/33 	110
5 	28 	12/12/36 	120
6 	31 	12/12/36 	120
7-9 	31 	12/12/36 	120
10-12 	34 	13/13/39 	130
13-14 	37 	13/13/39 	130
15 	37 	14/14/42 	140
16-18 	40 	14/14/42 	140
19 	43 	14/14/42 	140
20-21 	43 	15/15/45 	225
22-24 	46 	15/15/45 	225
25-27 	49 	16/16/48 	240
28-29 	52 	16/16/48 	240
30 	52 	17/17/51 	255
31-32 	55 	17/17/51 	255
33 	55 	17/17/51 	255
34 	58 	18/18/54 	255
35-36 	58 	18/18/54 	270
37-38-39	61 	18/18/54 	270
40-41-42	64 	19/19/57 	285
43-44 	67 	 	285
45 	67 	 	300
46-47-48	70 	 	300
49 	73 	 	300
50-51 	73 	 	420
52-53-54	76 	 	420
55-56-57	79 	 	440
58-59 	82 	 	440
60 	82 	 	460
61-62-63	85 	 	460
64 	88 	 	460
65-66 	88 	 	480
67-68-69	91 	 	480
70-71-72	94 	 	500
73-74 	97 	 	500
75 	97 	 	520
76-77-78	100 	26/26/78 	520
79 	103 	 	520
80-81 	103 	 	540
82-83-84	106 	 	540
85-86-87	109 	 	560
88-89 	112 	 	560
90 	112 	 	580
91-92-93	115 	 	580
=Abyss Trial & Challenges=
The Abyss Trial and Challenges represent an extra game mode, which features more difficult predefined enemy formations that must be battled in order to obtain Sunlit Dust, Scarlet Gold Ore and an "Abyss Treasure".
While opening a Trial or a Challenge has different unlock prerequisites, they are actually quite similar modes.
==Abyss Trial==
In order to open the Abyss Trial, one must spend an "Abyss Trial Entry Ticket" each time the enemy formation is challenged.
Since the player can purchase up to 4 cards weekly, in general the Abyss Trial can be done at most four times per week.
==Abyss Challenge==
* There is a total of 3 Abyss Challenges, with increasing difficulty
* In order to unlock challenges, the player must fight (or sweep) regular sub-chapters - this will add a progress % to the challenge node.
* The higher the challenge number, the slower the unlock progress. Once it reaches 100%, it is independently unlocked.
* Each challenge can be done only once per week. Progress resets at the end of the week.
Challenge	% Progress/Battle	Battles Required
I 	2% 	50
II 	1% 	100
III 	2/3% 	150
==Challenge Formation==
Various non-standard formations can be randomly assigned to the player. They always feature 8 units, most often a premium hero and are meant to be more challenging than regular chapters. 
==Rewards==
Beating any challenge or the trial rewards the player with 100 , 100 and 1 "Abyss Treasure" (2 for last trial).
Each treasure contains 25 , 15 and a mysterious reward which translates to random currency (list below not exhaustive):
* 50
* 50
* 500
* 300
* 50
* 5 Rare Material Chests
* 15 Material Chests