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!
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update 15/10/2018

Updated Information

  • How to Get info Updated
  • Dark Magician Cosmo Brain Deck is added to Deck Section

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]
Level-up reward--
Victory against--
Card trader--





Hot New Top
Lordy 9days ago
This card should be banned at all, vampire vamp actually eats it !
Anonymous 9days ago
Why the hell is this broken piece of crap not banned. Special summon 3000 attack monster from the goddamn deck and guaranteed in starting hand. It’s bizarre. To make things worse, it works even with a normal monster on the field, so when they draw their 2nd and 3rd Cosmo Brains, they fill the board with 3100 monsters instantly. It’s bizarre.
<< Anonymous
Anonymous 9days ago Reply
keep calm and play candy crush...
<< Anonymous
Cosmo Brain 9days ago Reply
I'm sorry you're suffering. But please, use your brain.
Just to confirm, genex controer is not consider a normal monster right? So it can't be special summon by Brain but can be used to special summon Brain
<< Anonymous
Anonymous Reply
...Why wouldn't Genex Controller be a Normal Monster?
<< Anonymous
Anonymous 18days ago Reply
tuners are considered effect monsters unless stated otherwise iirc
<< Anonymous
Anonymous 18days ago Reply
Genex Controller is a Normal Monster.
Anonymous 22days ago
OP card for trash players. Never get why people play cards like this trash
<< Anonymous
Anonymous 22days ago Reply
You're contradicting yourself here between your first and second sentence, is this card OP or trash?
Anonymous 29days ago
Wow probably the best current card in the whole game.
For a re-skin of Cosmo queen this card is actually pretty powerful. Rate 10/10
We need cosmo brain card sleeves and mats
I quit this deck. I make new account and focus to vampires instead. This deck lacking consistency
Cosmic Brain > Dark Magician
<< Anonymous
Anonymous Reply
but cosmo brain is actually good
<< Anonymous
Anonymous Reply
you know this symbol?
just wondering
Insanely powerful ! very good card
A must in blue-eyes deck
I hope we get cosmic brain and hieratics in a future mini box
<< Anonymous
Anonymous Reply
If not buy the structure deck
Cosmo queen new version :o

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