How to beat level 40 Mai Valentine

This page notes level 40 Mai's deck, characteristics, and tips for defeating her.
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update 19/12/2016
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Character details

How to farm Lvl 40

Unhappy Girl deck

Obtainable score7,000-8,000
Essential skillHoly Guard / LP α
Essential cardsThe Unhappy Girl

Example deck


  • Use The Unhappy Girl with Tea's "Holy Guard" skill to prevent any damage taken when you attack and stall for turns.
  • Bring some recovery cards to maintain your LP.

Example deck (No Union Attack, LP α skill)

Cú Chulainn the AwakenedThe Unhappy GirlThe Unhappy GirlThe Unhappy GirlSkelengelSkelengel
SkelengelRai-MeiRai-MeiRai-MeiBlue-Eyes White DragonRiryoku
Ritual WeaponEmblem of the AwakeningSecret Pass to the TreasuresCurse of AnubisWindstorm of EtaquaEnchanted Javelin
Enchanted JavelinEnchanted Javelin----

Using the skill LP α, Mai won't attack the unhappy girl unless she summons high attack monsters that can deal 5000 damage after attacking unhappy girl. Either raise your LP quickly by using enchanted javelin and set a monster to bait an attack, or bring equip cards to increase unhappy girls' attack. Stall using the unhappy girl and don't summon BEWD until the last turn. Tribute summon and ritual summon on the last turn and use secret pass on Cu before increasing his attack.

Level 40 Mai's deck



Amazoness deck

Level 40 Mai Valentine uses Amazoness deck. Amazoness monsters gains ATK, be back from the graveyard, and be special summoned from the deck benefitting from amazoness support spell/trap cards.

Annoying cards

CardEffect Summary
Amazoness Tiger
Amazoness Tiger
  • Defends other Amazoness cards from being attacked.
  • Gain 400 ATK per Amazoness monster on your field.
Amazoness Village
Amazoness Village
  • Boosts the ATK of Amazoness monster by 200.
  • Special summon 1 Amazoness monster from the deck when an amazoness monster is destroyed.
Amazoness Willpower
Amazoness Willpower
  • Special summons an Amazoness monster from the graveyard without cost.

How to defeat Mai's deck


Remove Amazoness Village first

Mai's side of the field never become empty while the Amazoness Village field spell is activated. To allow your monsters to attack Mai's life points directly, you should destroy the field spell and prevent amazoness reinforcements from being special summoned.

Best cards to counter Mai's deck

CardEvaluation/How to Get
Will be used to destroy Amazoness Village or Amazoness Willpower.
Will be used to destroy Amazoness Village.
The Hunter with 7 Weapons
The Hunter with 7 Weapons
Can increases the ATK of itself to 2000 since amazoness monsters are Warrior-type with except of Amazoness Tiger.
Warrior Elimination
Warrior Elimination
Can destroy most of amazoness monsters Mai controls.
Wonder Balloons
Wonder Balloons
Works very well since Amazoness Sage is the only card that can destroy spell/trap card.


hound 22hour ago
it's a risk but what if u run her out of cards
anoymous 7days ago
Easily get her almost every time.
anoymous 18hour ago
Lucky, no amazoness archer there. lol
And 5days ago
the score?
anoymous 7days ago
Trust me this is the easiest deck to farm mai with hopes it helps
anoymous 4days ago
how did you get the magic blast?
anoymous 12days ago
Deck I have a 100% win rate with so far (including, but not limited to, completing the 3 wins in a row mission):

3x Lycanthrope
2x Judge Man
1x Meteor Dragon
1x Warrior Dai Grepher (filler)
2x Blue Dragon Summoner
1x Senju
1x Sonic Bird
2x Iron Blacksmith Kotetsu
3x Ritual Weapon
3x Synthesis Spell
1x Windstorm of Etaqua

Mai cannot deal with a 3900-ATK Lycanthrope in any possible way (Amazoness Fighting Spirit doesn't stack)
Makerlein 7days ago
Its less about the winrate and more about maxing the score :D
myan 13days ago
wow, before unhappy girl come out i've throw out my rai-mei, now need to find them
anoymous 13days ago
Super easy to farm with Unhappy Girl. I'd include a couple copies of Ready for Intercepting. Extra defense just in case, and it prevents Amazon Archer from using its effect.
John 18days ago
Guys any suggestion on how to simply beat her? I mean im on stage 49 and I only need to beat Mai and Ishizu and both are completely destroying me...
anoymous 8days ago
Use Tea and her skill Holy Guard together with Unhappy Girl deck
Someone. 8days ago
"Guys any suggestion on how to simply beat her? I mean im on stage 49 and I only need to beat Mai and Ishizu and both are completely destroying me..." -- Lol.Same (almost) mai's the last one for me to beat in terms of mission/level requirements and she is indeed a major struggle to beat. Doesn't seem to matter what you do, she seems to have a way around things.
Wesker 14days ago
Me too been stuck on that one trying to collect green keys
anoymous 18days ago
Use the Unhappy Girl deck on both of them.
Juantiller 19days ago
If anyone of you meet quick victory against mai I suggested joey with 3 karate man the equip that let you attack twice draw cards and the card that let 1000 and less attack directly
anoymous 15days ago
All this tactics... I simply love this game, still, after all the years. I have the first boosters up to Rise of Destiny in Hardcopy ;-) Ty Konami for continuing this epic journey ^^
Black Jinzo 18days ago
Nice tip dude, took the deck down there and fulfilled the misdion within 7 duels
Slade 20days ago
Fun Fact!:
You can close the game before you lose against her and keep the Winning streak going.
anoymous 13days ago
No, they patched the ability to reset LDs that appear in Duel World. Quitting against her before you lose will maintain your streak. I just completed the "win 3 consecutive duels against lvl 40 Kaiba" with this method.
Blah blah 18days ago
Pretty sure they patched that
Leandro 21days ago
Does anyone have a sugestion on how to beat Mai for the stage 59?
You have to do a quick victory with Joey 3 times.
I'm finding f.. impossible
anoymous 16days ago
actually nevermind I read it wrong
PVPBEAST 16days ago
It says comeback victory not quick victory. Im there too
Sempai 22days ago
Hi guys, anyone help me. I'm stuck on mission 57, where I have to win from 3x consecutive Mai, someone knows a good deck, I've tried several.
anoymous 19days ago
Using Tea with Holy guard skill.3 Unhappy girl and keep attacking his monster, 3 of Rai-Mai to pull out Unhappy girls more easily and 3 bubonic mumin to fun your deck and good defensive cards. Other 11 cards to finish Mai depend on you
anoymous 20days ago
make it lvl 10, you will win easily
PK 21days ago
@anonymous: what does that deck look like?
anoymous 22days ago
2 dragon fusion deck with balance skill, destroy every LD in 2 turn
It's Me, Luigi 22days ago
This Deck works very well for me. Just boost her monsters above 1900 ATK and you are safe. Easy win.
anoymous 12days ago
Irsyad, why German. Anyways, I like this build. Very different compared to standard Cerberus deck which can be risky.
Irsyad 12days ago
Danke für Ihre Information, jetzt kann ich gegen Mai gewinnen
It's Me, Luigi 22days ago
The skill is "switcheroo"
PK 22days ago
What skill is that?

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Comments (updated every hour)

Why should I use Transporter? It only temporary protects a monster not backrow.
gift of martyr is op as fuc when it comes to farming.
Nvm was against vagabond
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