Cosmo Brain

This page notes details of Cosmo Brain (DARK/Spellcaster/Effect Monster) : decks, tips, effect and rulings. Learn and enjoy playing Yu-Gi-Oh! Duel Links!
Duel Links Breaking News
Structure Deck EX: Ruddy Rose Burning
update 14/03/2020

Cosmo Brain

Cosmo Brain
TypeSpellcaster, Effect


Cannot be Normal Summoned/Set. Must first be Special Summoned by sending 1 non-Effect Monster from your hand or face-up field to the GY. This card gains ATK equal to the Level of the monster sent to the GY this way x 200. You can Tribute 1 Effect Monster; Special Summon 1 Normal Monster from your hand or Deck. You can only use this effect of "Cosmo Brain" once per turn.

How to Get

PackThe White Dragon of Legend [R]
Sword of Paladin [R]
Selection Box Vol.05 [R]
Level-up reward--
Victory against--
Card trader--




Blue-Eyes Cosmo Brain Deck

Dark Magician Cosmo Brain Deck


Hot New Top
this card is bugged since the last update, cannot be special summoned on your first turn. i reported the bug but lets wait for weeks until the fix
<< Anonymous
Anonymous Reply
So, you did use Red-Eyes Fusion and then "for some reason" you cannot summon any other cards anymore? That's crazy. I wonder if Red-Eyes Fusion has some "hidden" mechanic going on.
<< Anonymous
Anonymous Reply
Read Red-Eyes Fusion carefully. Find a mirror. Give a facepalm.
<< Anonymous
Anonymous Reply
You cannot activate red-eyes fusion skill turn one, need to drop LP
<< Anonymous
Anonymous Reply
It happened to me with my blue eyes farm deck, i use alternative evolution but it was just the day the box was out, the day after it was working ok
Any way to search for this card if i dont start with it my first turn? Like fossil dig does for dinos
<< Anonymous
Anonymous Reply
If we this card waw in anime , who would have it ? Yugi or Kaiba ?
<< Anonymous
Anonymous Reply
Kozaburo, Kaiba's father, used Cosmo Queen in anime. In that case, there is a strong relation of Cosmo Brain with Kaiba.
<< Anonymous(Ms)
Anonymous Reply
belongs to heishin
<< Anonymous
Anonymous Reply
You are man of culture as well. Good old forbidden memories game.
<< Anonymous(Ms)
Anonymous Reply
They have Monster Reborn, Poly and other generic cards so why not this for both? also sage is spell caster so...
Do we have an R dream ticket too ? I want another one of these
<< Anonymous(Paladin)
Anonymous Reply
There's no rare dream ticket as far as I know. There might be one in the future, though, considering how popular certain cards like this, AG Wyvern, and AG Frame can be since a lot of people don't like paying for exclusive cards
<< Anonymous
Anonymous Reply
There won't be any because it would lower their profits.

Why would a company spend resources on a feature that will lower sales?

It's all about money.
not so brainy
I cant use his ability in the first turn I have him. That just ruins the flow and opens the game for the other player
<< Anonymous
Anonymous Reply
Only if you use Arkana’s skill, you could play without it
<< Anonymous
Anonymous Reply
Always read the skills you are using in your decks, dude.
this card is 🔥in broken. such an easy cheap way to win just like treachearous and neos fusion. i go to pvp and lose 3 times in a row because all them 🔥s summon this card on their first card. make this limited to 1 and nerf this overpowered deck
<< Anonymous
Anonymous Reply
<< Anonymous
Anonymous Reply
Yup. Most guy I fought drawn this card together with Blue Eyes White Dragon on the first turn. By throwing Blue Eyes to the graveyard, this card come out on the field with unsurpassed ATK.
<< Anonymous
Anonymous Reply
well it technically is limited to only 1 deck and only people who pay get its copies
Is buying the the blue eyes deck the only way to get the card cosmo brain or are there other packs/events that allow you to get multiple copies of the card?
<< Anonymous
Garrett Reply
And even further, you can go to your local card shop where you can get good insight from experienced players and sellers.
<< Anonymous(Garrett )
Anonymous Reply
Wait how does it work with duel links? How do they manage to give us the card like that?
<< Anonymous(Garrett )
Anonymous Reply
Yeah, that doesn't work
<< Anonymous
Anonymous Reply
I think everyone misunderstood. No, you can only get one copy in duel links, unless you pay real money to get another of the decks.
It sais is needs to discard 1 Non-effect monster to the graveyard to summon, my opponent sends Dragon Spirit of White to the graveyard (which is a effect monster) and summons it? Is it supposed to work like that?
<< Anonymous
ValleCula Reply
Yes, Dragon Spirit of White is treated as a Normal Monster while in the hand and Graveyard.
Remember when they said Cosmo Brain was going to be limited? it's been almost a year since the White Dragon of Legend was put for sale. NO limits at all LOL !

good morning. Excuse me for ignorance. How do I get more copies of the cosmos? Just paying? thank you
<< Anonymous(ego)
Anonymous Reply
<< Anonymous
ego Reply
thank you
<< Anonymous(ego)
Despair Reply
Buy structured deck multiple times

Commens and feedback


Thank you for visiting Duel Links wiki by GameA! We update this Yu-Gi-Oh! Duel Links community day by day to provide quality guides and the latest news.

Duel Links Wiki Updates

Duel Links News & Events

Link the World: Link Summon Challenge Event

42nd Main Box: Link Revolution

Structure Deck EX: Cyberse Code

Selection Box Vol.02 Super Mini

Vrains World Celebration Campaign

Upcoming events [September]

Leaked Characters

Yu-Gi-OH Vrains

Vrains Characters

How to beat/farm Legendary Duelists Lvl 40

Vrains Leaked Characters

Yu-Gi-Oh Arc V

Arc V Characters

How to beat/farm Legendary Duelists Lvl 40

Yu-Gi-Oh Zexal

Legendary Duelists

How to beat/farm Legendary Duelists Lvl 40

Other Zexal Duelists

Yu-Gi-Oh Dark Side of Dimension [DSOD]

Legendary Duelists

How to beat/farm Legendary Duelists Lvl 40

Yu-Gi-Oh 5D's

Legendary Duelists

How to beat/farm Legendary Duelists Lvl 40

Useful links



Decks to farm LD Lvl 40

Characters (Legendary Duelists)

Yu-Gi-Oh! (DM)

Yu-Gi-Oh! GX

Related pages


Card Sleeves & Game Mats

Booster packs/Card Trader

Card Trader & Ranked Rewards

Card TraderRanked Rewards

Card Trader

Ranked Rewards

Card box

Available card boxes
The Ultimate RisingAge of DiscoveryNeo-ImpactFlame of the TyrantValkyries Rage
Wonders of the SkyChaotic ComplianceLand of the TitansCrimson KingdomDawn of Destiny
Electric OverloadEchoes of SilenceServants of KingsGalactic Origin
Blades of Spirit Primal BurstResonance of ContrastAbyss EncounterRampage of the Forest
Valiant SoulsVisions of IceCrusaders BattlegroundClash of WingsBurning Nova
Empire of ScarletGaia GenesisStardust AccelerationPower of BraveryBlackstorm Rising
Secrets of the AncientsRevolution BeginningTornado of PhantomsAbsolute InfernoDimension of the Wizards
Warriors UniteLords of ShiningBlazing RoseGuardians of RockCybernetic Rebellion
Curse of DreadValhalla CallingDark DimensionSpirit of the BeastAerial Assault
Soul of ResurrectionFuture HorizonMasters of ShadowJudgement ForceFortress of Gears
Truth UniverseFlames of the HeartWitchs SorceryChronicle of GloryInfernity Destruction
Arena of SanctuaryShining HopeVoltage of the MetalShark FangRage of Volcano
Infinite RayPhotons of GalaxyAntinomic TheorySign of HarpiesEternal Stream
The King of VermillionDarkness GimmickArts of AtlantisPendulum GenesisIdea of Armageddon
Chaotic SoldiersForce of InfinityFantastic ArcPhantom of RebellionMaximum Gustav
Heart of XyzShining SunriseStars of SynchroLink Revolution

Selection Box

Selection Boxes
Selection Box Vol. 01Selection Box Vol. 01 MiniSelection Box Vol.01 Super MiniSelection Box Vol. 02Selection Box Vol. 02 Mini
Selection Box Vol. 03Selection Box Vol.03 MiniSelection Box Vol.04Selection Box Vol.04 MiniSelection Box Vol.05

Structure decks

Structure decks
Sorcerers AllianceDragonic ForceHero RisingLegendary WarriorsDestiny Rulers
Dragonic KnightsSpellbound SilenceSynchro ConnectionThe White Dragon of LegendSwordbound Silence
Ancient Gear AwakeningNeos FusionReturn of the Red-EyesFull Metal DesperadoMaster of Chaos
Kings ResonanceDragunity OverdriveGladiators StormHERO GenerationReturn of the Fire Kings
Gagaga XyzTales of the Noble KnightsBlue-Eyes EvolutionStardust NexusRise of Gaia
Evil DominationMagicians ArcD/D/D ApocalypseCyber Style ExtremeSword of Paladin
Tellarknight AdventBrave HopeRuddy Rose Burning

Other Pages

Duel Links Basics


Standard duelists & Legendary Duelist Lvl 30


Comments (updated every hour)

This game has been on a decline. Not many people been playing
I bought the Reinforcement of the Army bundle but the card is not in my inventory...?
U can bounce your opponent
There is a skill to solve this issue
> Go to the latest comments

Popular Decks

Popular Cards


Another Game Site