Drytron Alpha Thuban 33
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a "Drytron" card. You can Tribute 1 other "Drytron" monster, or 1 Ritual Monster, from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can add 1 Ritual Monster from your Deck to your hand. You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of "Drytron Alpha Thuban" once per turn.
Drytron Beta Rastaban
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a "Drytron" card. You can Tribute 1 other "Drytron" monster, or 1 Ritual Monster, from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can return 1 of your banished "Drytron" monsters to the GY. You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of "Drytron Beta Rastaban" once per turn.
Drytron Delta Altais
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a "Drytron" card. You can Tribute 1 other "Drytron" monster, or 1 Ritual Monster, from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can reveal 1 Ritual Monster or 1 Ritual Spell in your hand, and if you do, draw 1 card. You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of "Drytron Delta Altais" once per turn.
Drytron Gamma Eltanin
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a "Drytron" card. You can Tribute 1 other "Drytron" monster, or 1 Ritual Monster, from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can Special Summon 1 "Drytron" monster with 2000 ATK from your GY, except "Drytron Gamma Eltanin". You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of "Drytron Gamma Eltanin" once per turn.
Drytron Meteonis DA Draconids
Level 12 LIGHT/Machine Ritual Effect5000 ATK / 5000 DEF
You can Ritual Summon this card with "Meteonis Drytron". Other "Drytron" monsters you control cannot be destroyed by your opponent's card effects. Twice per turn, when your opponent activates a monster effect (Quick Effect): You can banish "Drytron" monsters (min. 1) from your GY whose total ATK equal or exceed the original ATK of that monster; negate the activation, and if you do, destroy it. If this Ritual Summoned card in its owner's control is destroyed by an opponent's card: You can Special Summon 1 Ritual Monster with 4000 ATK from your hand or Deck. (This is treated as a Ritual Summon.)
Drytron Meteonis Draconids
Level 12 LIGHT/Machine Ritual Effect4000 ATK / 4000 DEF
You can Ritual Summon this card with "Meteonis Drytron". Your opponent cannot target this card with monster effects. If the total Levels of monsters used for its Ritual Summon are 2 or less, this card can attack all Special Summoned monsters your opponent controls once each. During your opponent's turn (Quick Effect): You can banish monsters from your GY whose combined ATK equals exactly 2000 or 4000, then target 1 face-up card your opponent controls for every 2000 ATK of the total; send that card(s) to the GY. You can only use this effect of "Drytron Meteonis Draconids" once per turn.
Drytron Meteonis Quadrantids
Level 12 LIGHT/Machine Ritual Effect4000 ATK / 4000 DEF
You can Ritual Summon this card with "Meteonis Drytron". Your opponent cannot target this card with Spell/Trap Cards or effects. You can only use each of the following effects of "Drytron Meteonis Quadrantids" once per turn. If the total Levels of monsters used for this card's Ritual Summon were 2 or less: You can destroy all Spells and Traps your opponent controls. If this Ritual Summoned card is destroyed: You can Special Summon "Drytron" monsters from your GY, except "Drytron Meteonis Quadrantids", whose combined ATK equals exactly 4000.
Drytron Mu Beta Fafnir 33
Level 1 LIGHT/Machine Xyz Effect2000 ATK / 0 DEF
2+ Level 1 monsters
When you Ritual Summon, you can detach a material(s) from this card as monster(s) required for the Ritual Summon. You can only use each of the following effects of "Drytron Mu Beta Fafnir" once per turn. If this card is Xyz Summoned: You can send 1 "Drytron" card from your Deck to the GY. When your opponent activates a Spell/Trap Card, while you control a Machine Ritual Monster (Quick Effect): You can detach 1 material from this card; negate the activation, and if you do, destroy that card.
Drytron Nu II
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned by card effect. If a "Drytron" card is on the field: You can Special Summon this card from your hand or GY, but banish it when it leaves the field. If this card is Special Summoned: You can add 1 "Drytron" monster from your Deck to your hand, except "Drytron Nu II". You can only use each effect of "Drytron Nu II" once per turn, also you cannot Ritual Summon the turn you activate either of this card's effects, except Machine monsters.
Drytron Zeta Aldhibah
Level 1 LIGHT/Machine Effect2000 ATK / 0 DEF
Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a "Drytron" card. You can Tribute 1 other "Drytron" monster, or 1 Ritual Monster, from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can add 1 Ritual Spell from your Deck to your hand. You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of "Drytron Zeta Aldhibah" once per turn.