Bright Cosmotron
"Spark Cosmo'n" + 1+ Positive monsters
During the Main Phase 1 (Quick Effect): You can switch the ATK and DEF of 1 monster on the field: Special Summon 1 "Cosmo'n" monster from your Hand or GY or 1 Psychic Bigbang monster from your GY, you can not Special Summon monsters from your Extra Deck for the rest of this turn, except Bigbang monsters. If a “Cosmo’n” or a Psychic Bigbang monster is summoned to your side of the field, you can equip 1 monster in your opponent’s GY to a Bigbang monster you control. You can only use each effect of “Bright Cosmotron” once per turn.
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Starflare Knight
"Flare Cosmo'n" + 1+ Negative monsters
If this card is Summoned: You can destroy Spell/Trap cards on the opponent's side of the field up to the number of monsters used to Summon this card, then you can Special Summon 1 "Cosmo'n" monster from your Deck, and if you do: this card gains 200 ATK and DEF for each card destroyed by this effect. If a Bigbang monster is Summoned to your side of the field, you can shuffle up to 5 "Cosmo'n" cards or Psychic monsters in your GY into your Deck. You can only use each effect of "Starflare Knight" once per turn.
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Meteor Gladiator
"Cluster Cosmo'n" + 1+ Positive/Negative monsters
If this card would be destroyed, sent to the GY, or banished by an opponent's card effect, it is not. Gains 300 ATK/DEF for each Equip Card you control. When a monster effect is activated (Quick Effect): You can negate the activation, and if you do, equip it to this card. If a Bigbang monster is Special Summoned to your field: You can double that monster's ATK, then switch this card's ATK and DEF. You can only use each effect of "Meteor Gladiator" once per turn.
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Starform Hero
"Starform Cosmo'n" + 1+ Negative monsters
If this card is Bigbang Summoned: You can target 1 Level 6 or lower Bigbang monster in your GY; either equip it to this card or Special Summon it. This card gains ATK equal to the total ATK of all monsters equipped to it, and DEF equal to the total DEF of all monsters equipped to it. Once per turn (Quick Effect): You can destroy 1 monster your opponent controls whose ATK is less than the difference between this card's original and current ATK. If this card attacks or is attacked, your opponent cannot activate cards or effects until the end of the Damage Step.
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Fortress Cosmo'n
1+ Positive "Cosmo'n" monsters + 1+ Negative "Cosmo'n" monsters
If this card is Bigbang Summoned: You can add up to 2 "Cosmo'n" cards or 2 Bigbang monstes that mention a "Cosmo'n" monster as materia from your GY to your Hand. You can tribute 1 monster you control, Special Summon 1 "Cosmo'n" monster from your Hand or GY except "Fortress Cosmo'n", you can not Special Summon monsters from your Extra Deck for the rest of this turn, except Bigbang monsters. If this card is destroyed: You can Special Summon 1 "Cosmo'n" monster from your Hand or GY except "Fortress Cosmo'n". You can only use each effect of "Fortress Cosmo'n" once per turn.
