Yu-Gi-Oh! Card Review: Cosmo Brain


ATK/1,500 DEF/2,450

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.

Cosmo Brain is a spellcaster and effect monster. This monster provides support for normal monsters. Decks with normal monsters may consider this card. Cosmo Brain has two useful effects for these decks.

First Effect:

Cosmo Brain cannot be normal summoned and you must special summon this card. The requirement for Cosmo Brain is sending a non-effect monster from the hand or face-up on the field to the graveyard to first special summon him. You can easily play this monster if you have a normal monster in your hand.

Therefore, a deck needs a good amount of normal monsters for the cost of this special summon. Cosmo Brain relies on normal monsters to consistently play him. This is the card’s main weakness. Cosmo Brain is a useless card without a normal monster in your hand or on your field.

Second Effect:

In addition, Cosmo Brain becomes a powerhouse with his effect. Cosmo Brain gains ATK equal to the monster’s level sent to the graveyard for the cost of his special summon times 200. He becomes a powerful monster and he may deal a lot of damage in battle.

For instance, Cosmo Brain gains 1,600 ATK when you discard Blue-Eyes White Dragon for the special summon. Cosmo Brain would have a total of 3,100 ATK. He has a strong presence on the field with his impressive offense. He can destroy strong monsters in the battle.

Third Effect:

Cosmo Brain is a nice addition in decks with normal monsters with high levels. Cosmo Brain tributes one effect monster and special summons a normal monster from your hand or deck. The effect is very a useful skill if the new monster is an essential card for your strategy. One of your key cards is now on the field.

In addition, one of the best advantages of Cosmo Brain’s third effect is its access to the deck because you do not need the normal monster in your hand. The normal monster may be special summoned from the deck. You are not in the bad situation if you do not draw the card.

Furthermore, Cosmo Brain is a useful card for decks with Blue-Eyes White Dragon and Dark Magician. This spellcaster may special summon these essential normal monsters from the deck. He is an additional method to special summon them in a quick and efficient manner.

Play these normal monsters with Cosmo Brain!


Cosmo Brain is a spellcaster and spellcasters provide valuable support for Cosmo Brain. You can play this card decks with spellcasters for normal monsters. One of these decks is the archetype of The Dark Magician.

In addition, Cosmo Brain receives support form Spellbooks. All Spellbooks support spellcasters with their powerful effects. Spellbook book of Wisdom protects Cosmo Brain from the opponent’s spells or traps.

Play these cards with Cosmo Brain!
  • Secret Village of the Spellcasters
  • Spellbook of Wisdom
Card Rating:

All in all, Cosmo Brain is nice option for decks with normal monsters with high levels. This spellcaster creates an easy path to special summon your normal monsters from the deck. Cosmo Brain potentially unleash a strong offense if you are able to greatly raise his ATK with his first effect. I recommend playing this monster in your deck if you have the extra space for him.

Card Rating: 3 out of 5 stars (3 / 5)

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