Deadly Sin Dragons & Key Heroes series returns!
The Rare Egg Machine (REM) event returns for 3 weeks! Is it farming time again?
Quick Summary
- Nothing much changed from last time, except for the addition of Miya, who unlocks the special Orb Skin.
- No dungeons were reset, though 1 dungeon is replaced by another (see next point).
- Dungeon gone: Last time there was Complete Annihilation Sin Dragon Rush (solo-only), don’t think that is here this time.
- New Dungeon: Instead, we have a new solo-only Special Dungeon, which gives 1 each of the Crystals when cleared!
- The bundles in Shop reset every week. 2 bundles and 3 resets, which means you can buy 6 bundles. Good luck!
- Spoiler: Gorkaos
got a new intriguing evolution…
Quick guide from debut post
- Guide #1: Fether’s walkthrough on the PAD Subreddit!
- Guide #2: Lumon’s guide on the Sacred and Cursed Keys!
Assist Uvo Revo Sin Dragons (7 total) |
|
Base Change Heroes of Keys ( |
|
Sacred Key |
Assist Evolutions: |
Cursed Key |
Assist Evolutions: |
Fragments |
The things you farm for. |
Crystals |
The things you exchange for.
|
More information for the hidden elements available in spoiler section! |
The Story
A long time ago (a long tamago?), seven dragons were born from a crystal full of desires. The name was “Sin Dragons”. With the godly “power of keys”, the heroes sealed the Tamago (base form of Sin Dragons) away.
Hundreds of years have passed since… Surprise, the Sin Dragons returned. At the same time, cute heroes are given the powers of the keys! With that, the new legend begins.
How to play
Key Heroes & Sin Dragons: The characters
5 Magic Stones per roll. There are 30 free rolls as well, see next 2 sections for information.
All cards are linked to PDX database. You can also see New Cards section below for skill translations.
Heroes of Keys

高雅の鍵の継承者・ミヤ
炎の鍵の継承者・グレオン
氷の鍵の継承者・メニット
森の鍵の継承者・アムリネア
星の鍵の継承者・フェルル
月の鍵の継承者・ユークス
Sin Dragons

嫉妬の汰魔悟
怠惰の汰魔悟
強欲の汰魔悟
憤怒の汰魔悟

色欲の汰魔悟
傲慢の汰魔悟
暴食の汰魔悟
Rare Egg Machine: Full Lineup & Rates
Lineup changes slightly weekly, full lineup will be added when available.
[New] Orb Skin
Obtaining [7231] Miya unlocks the following orb skin, featuring the Key Heroes (why isn’t this in base form…). No bundles for Miya.
30 Free rolls total from Login!
30 rolls that are separated into three parts, so 10 rolls each! The rolls do expire by 11:59 pm at the end of each week, so roll ASAP!
Magic Stone Bundles
#1 | #2 | |
Bundle | 2 Magic Stones + Gacha Set 魔法石2個+大罪龍と鍵の勇者ガチャ |
30 Magic Stones + Guaranteed ★7 Gacha Set 魔法石30個+★7確定大罪龍と鍵の勇者ガチャ |
Price | $2 | $30 |
Magic Stone | ![]() |
![]() |
Gacha lineup | Heroes & Sin Dragons (★7, ★6, and ★5) | ★7, Heroes only |
Monster Exchange
Limited-time special exchanges
Collect Fragments from the dungeon, exchange them for higher tier tokens, and use them to evolve your Keys into Assist Evos!
Desired Card & Exchange Requirements | |||
[6436] Rainbow Crystal 虹の結晶 ▼ Trade 5 cards in. |
[6430] Rainbow Fragment 虹のかけら ▼ Trade 5 cards in. |
||
[6431] Fire Crystal 火の結晶 ▼ Trade 5 cards in. |
[6432] Water Crystal 水の結晶 ▼ Trade 5 cards in. |
||
[6433] Wood Crystal 木の結晶 ▼ Trade 5 cards in. |
[6434] Light Crystal 光の結晶 ▼ Trade 5 cards in. |
||
[6435] Dark Crystal 闇の結晶 ▼ Trade 5 cards in. |
|||
Monster Point store

聖なる鍵
呪いの鍵
[New] Solo-only dungeon: Key Heirs!
- New solo-only dungeon!
- Clear one floor to unlock the next one!
Dungeon floors | Clear rewards | |
---|---|---|
Elegant Key Heir 高雅の鍵の継承者 |
Rainbow Crystal ×1 虹の結晶 |
|
Moon Key Heir 月の鍵の継承者 |
Water Crystal ×1 水の結晶 |
|
Star Key Heir 星の鍵の継承者 |
Wood Crystal ×1 木の結晶 |
|
Forest Key Heir 森の鍵の継承者 |
Fire Crystal ×1 火の結晶 |
|
Ice Key Heir 氷の鍵の継承者 |
Dark Crystal ×1 闇の結晶 |
|
Flame Key Heir 炎の鍵の継承者 |
Light Crystal ×1 光の結晶 |
3 Event dungeons!

Dungeon drops | |
Boss | – |
1) Special Dungeon: Sin Dragon & Key Heroes (Solo-only)
Solo-only dungeon! Clear for the Fragments and also rewards! Dungeon name (JP): 大罪龍と鍵の勇者
Floor | Reward | |
---|---|---|
Full Clear | ![]() |
A roll in “Clear Reward! Sin Dragons & Heroes of Keys Gacha” Lineup: Only the Key Heroes and Sin Dragon (Base form)! |
Trial of Seven Sins-Mythical 七罪の試練 超地獄級 |
Rainbow Crystal ×1 虹の結晶 |
|
Trial of Greed 強欲の試練 |
Rainbow Fragment ×1 虹のかけら |
|
Trial of Envy 嫉妬の試練 |
Water Crystal ×1 水の結晶 |
|
Trial of Sloth 怠惰の試練 |
Wood Crystal ×1 木の結晶 |
|
Trial of Lust 色欲の試練 |
Fire Crystal ×1 火の結晶 |
|
Trial of Gluttony 暴食の試練 |
Dark Crystal ×1 闇の結晶 |
|
Trial of Pride 傲慢の試練 |
Light Crystal ×1 光の結晶 |
2) Special Dungeon: Seven Sin Dragon Rush!
- Face the Sin Dragons in this dungeon!
- First clear will give Cursed Key x 1! (Not the multiplayer version)
- Dungeon name (JP): 七つの大罪龍ラッシュ!
3) Multiplayer (3P) Dungeon: Multiplayer! Sin Dragons & Heroes of Keys
- Multiplayer dungeon, can also obtain Fragments here!
- Dungeon name (JP): 協力!大罪龍と鍵の勇者
[Spoilers] All secrets to the event
Previously these were secrets, now they’re open secrets!
New cards
New Assist Evolutions of Key Heroes
New Key Hero
New evolution of Gorkaos
Shhhh…. new evolution of Gorkaos!

Devil / Dragon











Active Skill: Fully recovers unmatchable and bind status; Create 7 dark orbs (7 max CD)
Leader Skill: [Fix 7 sec] Reduce dmg taken by 50% when matching 3+ colors; 25x ATK when matching 4+ colors, 49x ATK when matching 5 colors; 2x HP for Dark att.
Evolution will require… *drumroll please* Evolved Gorkaos’ Gem x 5. Yes, 5.
Evolution Materials
Buffs for older cards
Card | Change |
Flame Key Heir, Gileon 炎の鍵の継承者・グレオン |
Active Skill: For 3 turns, 3x ATK for Fire Att.; Changes to [6395] for the duration of the dungeon (
|
Flaming Magic Key Hero, Gileon 灼魔鍵の勇者・グレオン |
Leader Skill: 2x HP & ATK for Fire Att.; Slightly reduce damage taken when matching 3+ Fire combos; Reduce damage taken by 35% when above 50% HP;
|
Ice Key Heir, Menuit 氷の鍵の継承者・メニット |
Active Skill: For 3 turns, bypass damage absorb shield effects; For 3 turns, bypass void damage shield effects; Changes to [6397] for the duration of the dungeon (
|
Cerulean Ice Key Hero, Menuit 蒼氷鍵の勇者・メニット |
Active Skill: Change the far right column to Heal orbs; Lock all Water and Heal orbs; For 1 turn, increase combo count by
Leader Skill: Increase combo by |
Forest Key Heir, Amlynea 森の鍵の継承者・アムリネア |
Active Skill: Delay enemies’ next attack by 3 turns; Changes to [6399] for the duration of the dungeon (
|
Nurturing Wind Key Heroes, Amly & Lynea 恵風鍵の勇者・アムリ&リネア |
Active Skill: Unlock all orbs; Random 2 orbs change every 1.0s for 2 turns (2 ➧ 2)
Leader Skill: 5x ATK and |
Star Key Heir, Ferule 星の鍵の継承者・フェルル |
Active Skill: For 3 turns, Light orbs are more likely to appear by 25%; Changes to [6401] for the duration of the dungeon (
|
Twinkling Star Key Hero, Ferule 煌星鍵の勇者・フェルル |
Leader Skill: [Disable Poison & Mortal Poison orb effects] 2x
|
Moon Key Heir, Euchs 月の鍵の継承者・ユークス |
Active Skill: For 3 turns, reduce damage taken by 50%; Changes to [6403] for the duration of the dungeon(
|
Dusk Moon Key Hero, Euchs 暗月鍵の勇者・ユークス |
Active Skill: Unlock all orbs; Create 6 Dark orbs; For 1 turn, reduce damage taken by 35% (3 ➧ 3)
Leader Skill: 2x HP for Dark Att.; 5x ATK and reduce damage taken by |
Deadly Sin Dragon King of Envy, Jevi 嫉妬の大罪龍王・ジヴィ |
Active Skill: For 2 turns, bypass void damage shield effects; Change all orbs to Water, Light, Dark, and Heal orbs (32 ➧
|
Deadly Sin Dragon King of Sloth, Feygoran 怠惰の大罪龍王・フェゴラン |
|
Deadly Sin Dragon King of Greed, Rhamamoa 強欲の大罪龍王・ラマモア |
|
Deadly Sin Dragon King of Wrath, Valditarne 憤怒の大罪龍王・バルディターン |
|
Deadly Sin Dragon King of Lust, Varias 色欲の大罪龍王・バリアス |
|
Deadly Sin Dragon King of Pride, Fadelle 傲慢の大罪龍王・ファデル |
|
Deadly Sin Dragon King of Gluttony, Majeh 暴食の大罪龍王・マジェ |
|
Incarnation of Ruin, Gorkaos 滅亡の化身・ゴルケイオス |
Artists & Miscelleneous
Card | Artist |
Yoichi Ito | |
Shinnosuke Hino | |
Saichi (Yes it’s Kiri’s Dragon!) |
I used two dark sky dragons a tao ren equip and two gakuen kio leads with a whole lotta lotta dark resists + latents. Getting to ult Gorc was easy. At Gorc the two Kio will damage cap every turn thanks to the dargon killers. I just saved one kios active skill for the awoken bind turn to guarantee shield so I dont die when my 100% resist isnt up. If you dont have a Kio yourself I’m sure ult iroha or something else can substitute– itll probably just be a little more grindy and pixel baddie can be used in place of dark sky. I got tired of dying to ult gorcs unavoidable execute after grinding him down too many times so I went with dark resist cheese. I hope this helps someone get the ult. Haku story also has a card with 5 dragon killers who can probably be used in some way to help get ult gorc.
Someday I know Gil will be buffed to make any other attribute of orbs rather than make Jammers.