Ko-No-Su-Ba! Deck Techs (EXPLOSIONS & Useless Blue)

Welcome to another 9th CX deck tech! We are excited for KonoSuba, and Travis and Arin have shared with us a couple of deck lists in progress! These lists are going to be tested soon, and we hope for favorable results! Next week, we have Melanie and Michael weighing in on their takes. But for this time, let’s get to the lists!


Arin’s List
Deck Name: RIP Yunyun

Level 0 – 18:

3 “Specialty: Delusion” Darkness (KS/W39-007)
4 “Board Game” Megumin (KS/W49-037)
3 “Guide to Obtaining Skills” Megumin (KS/W39-038)
3 “Problematic Act” Megumin (KS/W49-040)
2 “Kind Goddess” Eris (KS/W46-074)
3 “Meaning for Killing Snow Sprites?” Aqua (KS/W49-075)

Level 1 – 12

3 “Good Explosion!” Megumin (KS/W49-042)
3 “Sacred Create Water” Aqua (KS/W49-077)
4 “Preparation for Explosion Magic” Megumin (KS/W49-T05)
2 “Crimson Demon Girl” Megumin (KS/W49-T06)

Level 2 – 3

2 “Simultaneous Fire!!” Wiz (KS/W49-044)
1 “Calling for Sensei” Megumin (KS/W49-051)

Level 3 – 9

4 Megumin (KS/W49-035)
2 “Lich” Wiz (KS/W49-036)
2 “May You Be Blessed with Kind Encounters” Eris (KS/W49-072)
1 Aqua (KS/W49-073)

CX Spread

4 Explosion (KS/W49-T10)
4 Real Explosion Magic (KS/W49-067)

Travis’ List
Deck Name: Water Temple

Level 0 – 17:

4 “Kind Goddess” Eris (KS/W46-074)
4 “Meaning for Killing Snow Sprites?” Aqua (KS/W49-075)
3 “Troublemaker” Aqua (KS/W49-071)
3 “Covered in Slime” Aqua (KS/W49-080)
3 “Typical Thing in This Kind of World” Aqua (KS/W49-R13)

Level 1 – 11:

4 “Kind Smile” Eris (KS/W49-076)
4 “Sacred Create Water” Aqua (KS/W49-077)
3 “Sacred Turn Undead” Aqua (KS/W49-078)

Level 2 – 6:

2 “Embarrassed” Eris (KS/W49-079)
2 “Pride of the Goddess” Aqua (KS/W49-T17)
2 Senpai Appears (KS/W49-097)

Level 3 – 8:

4 “May You Be Blessed with Kind Encounters” Eris (KS/W49-072)
4 Aqua (KS/W49-073)

CX Spread:

4 Resurrection (KS/W49-098)
4 Revive (KS/W49-099)


At level 0, these decks have the following characters:

“Specialy: Delusion” Darkness can give one of your characters +1000 power when you play a CX. You can also hit yourself pay 1, clock yourself from top of deck, and rest this to tutor for a [Adventurer].


When “Board Game” Megumin is placed to the stage from hand, you may ditch a CX to salvage an [Adventurer] or [Magic]. She is also a free runner.


“Guide to Obtaining Skills” Megumin gives all level 0 or lower characters in front of this +1000 power. She is also a pay 1 rest 2 salvage brainstorm.


When “Problematic Act” Megumin is placed to the waiting room from stage, you may ditch a card to look at the top 4 cards of your deck for a [Magic] character, then discard the rest.

When “Kind Goddess” Eris is placed to the stage from hand, you may give one other [Adventurer] or [Goddess] character +1000 power for the turn. When you play a CX, you may return her to hand to draw 1 ditch 1.

When “Meaning for Killing Snow Sprites?” Aqua is placed to the stage from hand, you may put a card from hand into clock to tutor for up to one [Goddess] character.

“Troublemaker” Aqua gives your center slot hand encore. She also is a pay 1 rest this brainstorm to pull cost 0 or lower characters from WR to stage per CX.

When “Covered in Slime” Aqua becomes reversed in battle, you mill 2. If there was a level 2 or higher card among them, you may send this to stock.

“Typical Thing in This Kind of World” Aqua is a +500 assist to front and can give a character +1000 power when you play a CX.

At level 1, these decks have the following characters:

“Good Explosion!” Megumin is a level 1 or lower reverser with hand encore.


“Preparation for Explosion Magic” Megumin cannot side attack. She has a CX Combo with Explosion where on opponent reverse, you may salvage a character.

“Crimson Demon Girl” Megumin gets +500 for each of your other [Adventurer] or [Magic] characters and has clock encore.

“Kind Smile” Eris gets +1500 power when you play a CX. She has a CX combo with Revive where on CX play, if you control another [Goddess] character, you can put a cost 0 or lower character from WR to stage in any slot.

When “Sacred Create Water” Aqua is sent to WR from the stage, you may reveal the top 3 cards from your deck. If one or more is revealed this way, choose a [Goddess] character from them, add it to hand, ditch the rest of the revealed cards, then ditch a card from hand.

“Sacred Turn Undead” Aqua can’t front attack if she is facing a character with a higher level than her. She also sends her reversed battle opponents to memory. (This is a mandatory effect.)

At level 2, these decks have the following characters and events:

“Simultaneous Fire!!” Wiz gives all your level 3 or higher characters in front of this +2000 power. She has a CX Combo with Real Explosion Magic where if you have another Megumin(The actual card name, not a character with Megumin in name) you may pay 1 and ditch two cards to burn 5.

When “Calling for Sensei” Megumin attacks, if she is facing a level 3 or higher, she gains +6000 power. If she reverses her battle opponent and it’s level 2 or higher, you may pay 1 to salvage a character.

When “Embarrassed” Eris becomes reversed, if her battle opponent is a higher level than your opponent, you may send this card’s battle opponent to the bottom of your opponent’s deck. Also on play, you may pay 1 and discard two to put a character from WR onto the stage that is equal or lower than your level. 

“Pride of the Goddess” Aqua is a level assist. On play you may discard a card to look at up to the top 4 cards of your deck and add a [Goddess] character, then discard the rest.

Senpai Appears cannot be played if you don’t control a [Goddess] character. You may choose up to two [Goddess] or [Adventurer] characters and give them free encore.

At level 3, these decks have the following characters:

When Megumin is placed to the stage from hand,  look at the up to the top 3 cards of your deck, add one to your hand, then ditch the rest. She has a CX Combo with Real Explosion Magic where if this is in the front row, you may pay 1 to burn 4, then choose a level 3 or lower in front of this card, send it to your opponent’s clock, then rest this. (This means that Megumin will not attack.)

“Lich” Wiz gets -1 level in hand if you have 2 or less CX in WR. On play, you may heal. Also on play, your opponent may put a cost 0 or lower character from their WR onto the stage in any slot.

“May You Be Blessed with Kind Encounters” Eris gets -1 level in hand if you have “Meaning for Killing Snow Sprites” Aqua in your clock. On play you may salvage a [Adventurer] or [Goddess]. Once per turn, when your center slot attacks, you pay pay 1 and discard 2 cards from hand. If you do, reveal the top card of your deck. If it is an [Adventurer] or [Goddess], stand this.

When Aqua is placed to the stage from hand, you may pay 1. If you do, your opponent chooses 2 CXs in their waiting room, then shuffles the rest of their waiting room into their deck. Your opponent cannot use BACKUP during this card’s battle. She also has a CX combo with Ressurection where on CX play, you may discard a card to put a [Goddess] or [Adventurer] from clock onto the stage in any slot.

CX Spread:

Red Stock Soul(Real Explosion Magic), 1k1 Pants(Ressurection), 1k1 Book(Revive), and Red Stock Soul(Explosion)


Note: Because these decks are works in progress, analysis will be kept to a minimum. We’ll only be providing our thoughts on the decks until a greater consensus has been established on the most viable deck configurations.

How do we play these decks?

Travis: At level 0, my deck wants to mill through a good portion of it using the Aqua brainstorm and on-reverse ability of the other level 0 Aqua. If I happen to benefit from those effects then it’s a bonus, but it’s primarily to get cost 0 characters into my waiting room for Level 1. The added hand encore to center can also let me discard combo targets that I would like to put onto the stage. Level 1 it’s a rinse and repeat of the Eris level 1 combo to pull cost 0 characters from stage to WR, while filtering using her level 0 bounce card and the level 1 Aqua that looks at top 3 when it gets sent from stage to waiting room. Level 2 is just utility, using the Eris to kill off early plays and the event to keep characters alive if needed. Level 3 I want to use the Aqua to pseudo-refresh my opponent’s deck and pair it with the Eris restand combo to seriously damage my opponent with a double god blow, and play cards for free from clock.

Arin: I have not tested this yet, so I don’t know if there are too many non-Magic targets in the deck. If this deck gets wrecked too hard at level 1, I’ll swap into the Yunyun combo for more power and replace the level 0 Eris with either reverses or Wiz salvage Rikis.

M: But as for running the deck, it looks like a pretty aggressive list. You have all the makings of hand sculpting as early as level 0, which is a plus, and the Megumin CX salvager isn’t level-locked. One of the potential downsides of the deck is that it needs to build its hand early on and maintain it. No free encore effects and an expensive level 3 means that the user will probably want to avoid using the 3-stock encore like the plague. (In this case, the 1/1 Megumin can’t really be counted as free because it takes a 1-stock investment.)

Having a reverser with hand encore can also be a trap. Yes, having a repeatable reverser is nice, but knowing when to use the effect is more important. Auto-encoring it every turn can be dangerous, especially if facing a deck that has on-reverse effects (of which there are many).

When playing the Megumin combo, you get the unique advantage of sidestepping attacking altogether. The most common things that will get around that are characters that can rearrange the board (e.g. Monogatari, Attack on Titan) and characters with hexproof (e.g. TLR). The one big downside to it is that it doesn’t generate stock. The amount of damage it deals can also make some players uncomfortable. After all, 3 is much more likely to hit than 4, but when one is trying to go for an EXPLOOOOOSION, one has to go big. Besides, there are plenty of other ridiculous cards in the set that we haven’t covered here this time around (Cabbage.dec anyone?), and there’s plenty of room to tinker.


If you have questions, please send us a message via Facebook or an email at theninthcx AT gmail DOT com. Be sure to sign up for our seasonal giveaway, and subscribe to our YouTube channel!

Please check out our partner store, Card Academy!

Thanks for reading!