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.
NM-Mint Unlimited - $0.30
Lightly Played Unlimited - $0.30
Moderately Played Unlimited - $0.30
Heavily Played Unlimited - $0.20
Damaged Unlimited - $0.20
NM-Mint Unlimited Non English - $0.30
Lightly Played Unlimited Non English - $0.30
Moderately Played Unlimited Non English - $0.30
Heavily Played Unlimited Non English - $0.20
Damaged Unlimited Non English - $0.20
NM-Mint 1st Edition - $0.20
Lightly Played 1st Edition - $0.20
Moderately Played 1st Edition - $0.20
Heavily Played 1st Edition - $0.20
Damaged 1st Edition - $0.10
NM-Mint 1st Edition Non English - $0.20
Lightly Played 1st Edition Non English - $0.20
Moderately Played 1st Edition Non English - $0.20
Heavily Played 1st Edition Non English - $0.20
Damaged 1st Edition Non English - $0.10