Just an interesting mini-archetype for locking the field. Each card on its own is mildly annoying at best but when used right they can completely lock the opponent out of a field or the user if they aren't careful.
Forbidden Zone - Idol Tower
LV2 / LIGHT / Fairy
ATK 0 / DEF 500
FLIP: When this card is sent to the graveyard after being flipped face-up target one open zone on the field, the targeted zone cannot be used while this card is in the graveyard.
Forbidden Zone - Hand Curser
LV3 / DARK / Fiend
ATK 1000 / DEF 500
Up to Twice per turn you can discard one card from your hand to target one open zone on the field, the targeted zone(s) cannot be used while this card is face-up on the field. Also during your end phase discard one card from your hand or destroy this card.
Forbidden Zone - Summoner
LV4 / WIND / Winged-Beast
ATK 1000 / DEF 1000
Banish one level 4 or lower Forbidden Zone monster in your graveyard to special summon one level 4 or lower Forbidden Zone monster in either face up attack position or face down defense position. During your Opponent's End Phase discard a number of cards from the top of your deck equal to the current level of this card or destroy this card.
Forbidden Zone - Recycler
LV3 / WATER / Aqua
ATK 800 / DEF 1000
Twice per turn you can banish a number of cards from the top of your deck up to the number of zones that cannot be used and return a number of Forbidden Zone cards from you graveyard to your deck equal to the number of cards banished by this effect.
Forbidden Zone - Dimensional Rescuer
LV3 / WATER / Spellcaster
ATK 800 / DEF 1000
Twice per turn you can send a number of cards from the top of your deck to the graveyard up to the number of zones that cannot be used and return a number of Banished Forbidden Zone cards to your deck equal to the number of cards sent to the graveyard by this effect.
Forbidden Zone - Lotus Guard
LV1 / EARTH / Plant
ATK 0 / DEF 0
Each time this face-up card would be destroyed by battle or effect you can target one open zone on the field instead, the targeted zone cannot be used while this card is face-up on the field. If this card is attacked while in defense position you take battle damage equal to the difference between the attacking monster's attack and this card's defense.
Lotus Guard may seem broken as hell but think about it for a moment. You can also target you zones too and if your opponent has half a brain they'd take advantage of this.
Also if you can no longer seal zones you can no longer use its effect to save it and the LP lose from it won't be worth it after a while.
Forbidden Zone - Burnt Drawer
LV4 / FIRE / Pyro
ATK 1500 / DEF 500
Each time this card attack or is attacked you can draw one card from your deck. During each end phase you take 500 x the number of cards drawn by this card's effect this turn in damage to your life points.
Forbidden Zone - Healing Unit
LV4 / LIGHT / Spellcaster
ATK 1000 / DEF 1000
During each player's standby phase while this card is face up on the field the controller of this card gains 500 x the number of zones that cannot be used in life points. During the end phase of each turn banish one card from the top of your deck or destroy this card.
Forbidden Zone - Master Sealer
LV12 / EARTH / Rock
ATK 3000 / DEF 3000
This card cannot be special summoned except by a Forbidden Zone Spell or Trap card that names it specifically. This card cannot be tribute summoned except by using 3 tributes. Once per turn you can activate one of the following effects during your main phase.
*Discard a number of cards from the top of your deck to the graveyard equal to the number of unused zones that can be used, the remaining zones that are unused and able to be used before this effect cannot be used while this card is face up on the field.
*Banish a number of cards from the top of your deck equal to the number of cards on the field. Destroy all cards on the field including this card.
Master Sealer is the double edged sword of epic levels. If used right it can totally lock down you opponent but if used wrong it can take the user out as well since the number of cards is non-optional and what gets hit is also non-optional.
Forbidden Zone - Sealing Spell
Normal Spell
Target one unused zone on the field and banish this card when its effect resolves. While this card is banished the targeted zone cannot be used.
Forbidden Zone - Sealing Trap
Normal Trap
Activate when a card(s) leaves field (this activation is not optional), target up to two of the zones cards have left the field from on the field before this card's activation. The targeted zones cannot be used while this card is in the graveyard.
Forbidden Zone - Summoner's Spell
Normal Spell
Special Summon one level 4 or lower Forbidden Zone monster from your graveyard or deck in either face up attack or face down defense position.
Forbidden Zone - Lost Dimension
Field Spell
Discard one card from you hand to special summon one banished level 4 or lower Forbidden Zone monster or Forbidden Zone - Master Sealer to your side of the field in either face up attack or face down defense position. Once per turn you can roll one die and banish an number of cards in you graveyard to draw an number of cards from you deck equal to the number of cards banished by this effect this turn. Monsters banished by this effect cannot be special summoned this turn also cards drawn by this effect cannot be discarded by it this turn.
Lost Dimension is basically your boss monster's only way to get back onto the field from the banish zone and also you can use it to keep you hand semi-full but at the cost of not being able to use this card's effect on them until your next turn. The reason for the limiter of not being able to summon monsters banished by this effect the same turn or use the cards drawn by it as a cost the same turn is to prevent someone from starting a swarm assault the same turn and fulling it endlessly.
Forbidden Zone - Sealing Mirror Force
Normal Trap
Activate only when an opponent's declares an attack. Destroy all attack position monsters on your opponent's side of the field. The zones of monsters destroyed by this effect cannot be used while this card is in the graveyard. Banish this card from your graveyard in the end phase of your 2nd turn after it was used. Banish this card immediately if there are no Forbidden Zone monsters in your graveyard when this card is sent to your graveyard or while it is in it.
Forbidden Zone - Sealed Draw
Normal Spell
Draw a number of cards from your deck equal to the number of zones that cannot be used. You can only use the effect of Forbidden Zone - Sealed Draw once per turn.
Forbidden Zone - Sealed Pot of Greed
Normal Trap
When your opponent draws cards outside their draw phase and has at least one unused zone that can be used you can activate this card. Target one unused zone on your opponent's side of the field and draw two cards. The targeted zone cannot be used for the rest of the turn. Your opponent can discard one of any of the cards drawn outside their draw phase when this effect is activated to negate this effect.
Forbidden Zone - Extra Draw
Continuous Spell
Draw one more card in addition to your normal draw. Once per turn you can discard a card from the top your deck to draw one more card in addition to the card drawn by this card's effect during your draw phase.
Forbidden Zone - Attack Ban
Continuous Trap
A Player cannot attack if they have 3 or more zones unusable due to card effects. Discard 1 Forbidden Zone card from you hand each end phase or destroy this card.
Forbidden Zone - Tear into Lost Dimension
Quick-Play Spell
If there are no field spells active you can activate one Forbidden Zone - Lost Dimension from you hand or deck.
Forbidden Zone - Lost World Gate
Normal Spell
You can either Special Summon 2 Banished Forbidden Zone Monsters OR add one Forbidden Zone - Lost Dimension From your graveyard or banish to your hand. Also banish 2 Forbidden Zone monsters from your deck during your end phase.
Forbidden Zone - Destruction Shell
Normal Trap
Target and destroy one card on the field, the destroyed card's zone cannot be used for 3 of that player's turns.
Forbidden Zone - Lost World Counter
Counter Trap
When a card effect is activated negated and destroy the card. The zone of a card destroyed by this effect cannot be used while this card is in the graveyard. This card is banished if there are no Forbidden Zone monsters in your grave or after 3 of your turns.
Forbidden Zone - Desperate Counter Move
Normal Trap
If an attack by your opponent's monster were to reduce you life points to 0 or less you can target 2 unused zones on your side of the field that can be used instead of taking damage. The targeted zones cannot be used for the remainder of the duel.
Forbidden Zone - Slow Rip
Continuous Spell
Once per turn you can discard one Forbidden Zone spell or trap card from your hand and target one zone on the field. The targeted zone(s) cannot be used while this card is face up on the field.