Inprsonment or restrict decks are not well liked or widespread, but have the potential to steal the victory away from powerhouse monsters like Ancient Gear Golem, Summoned Skull, and your Envoy cards.
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Imprisonment Deck Strategies==
This deck style focuses over a few cards and concepts. Mask of Restrict, Gravity Bind, Mask of Dispel, Level Limit - Area B - they all work in amongst the monsters, none of which have levels above four.
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The Actual Deck==
MONSTERS
Witch of the Black Forest x1 - use her with low levels if you ever will
Spirit Reaper x1 - a nearly unbreakable defense with a potentially nasty attack effect
Mataza the Zapper x2 - don't underestimate Mataza - twin attacks can destroy with the right equip
Archfiend Soldier x1
Zure, Knight of Darkworld x1
Skilled Dark Magician x1 - the effect is absolutely worthless to you in this deck
Regenerating Mummy x3 - why three? They have the potential to jump back to your hand after a discard and have 1800 attack
Wall of Illusion x1 - let's do some stalling and defending
Getsu Fuhma x1
Newdoria x1
Cyber Jar x1
Bazoo the Soul-Eater x1 - decimating effect when applied appropriately
Gemini Elf x1 - still a massive store of attack
King Tiger Wanghu x1 - Forces your opponent to flip summon the few monsters they can with this deck running
Dummy Golem x1
Obnoxious Celtic Guard x1 - a little power boost and you are untouchable
Indomitable Fighter Lei Lei x1
Mine Golem x1
Gearfried the Iron Knight x1
Insect Knight x1 - 1900 attack and Witch of the Black Forest-able
Mystic Swordsman LV4 x1
Asura Priest x1 - remember, this is an all or nothing attack - attack one or attack all
White Ninja x1
Skilled White Magician x1 - another completely ineffectual effect for this deck, but a strong card
Roulette Barrel x1 - this card can backfire
Magician of Faith x1
7 Colored Fish x2
Tribe-Infecting Virus x1
Nin-Ken Dog x1
Girochin Kuwagata x2
Harpie's Brother x2
Sonic Duck x2 - here are your clinchers - once you play your level limit card, sonic duck is still incredibly effective
MAGIC
Poison of the Old Man x1
Mystical Space Typhoon x1
The Reliable Guardian x1 - helpful defense boost in a cinch
Rush Recklessly x2 - a dirty trick, but so effective
Serial Spell x1
Flint x1
Gravity Axe - Grarl x1
Wicked-Breaking Flamberge - Baou x1
Horn of the Unicorn x1 - make sure you don't lose it too often or you won't get anywhere
Premature Burial x1
Megamorph x1 - wickedly powerful on a card like Mataza the Zapper
Fairy Meteor Crush x1
Level Limit - Area B x2 - one of your main restricting cards
The Dark Door x1 - another restrictive card, but don't play it too early
Dark Snake Syndrome x1 - a risky move, but well worth it in the end, if you can pull it off
Ground Collapse x1
Mask of Dispel x1
Meteor of Destruction x1
Fissure x1
Dina Keto the Cure Master x1
Card Destruction x1
Heavy Storm x1
Creature Swap x1 - please don't swap for a monster you can't use with Gravity Bind/Level Limt - Area B
Pot Of Greed x1
Nobleman of Crossout x1
Swords of Revealing Light x1 - stall for better cards, basically
TRAPS
Call of the Haunted x1
Gravity Bind x2 - another major restrictor on your opponent
Spirit Barrier x1 - I think that this is the perfect deck for Spirit Barrier if used in combination with other effects - otherwise leave it out
Mask of Restrict x1 - the card from which this deck stems
Waboku x1 - another staller
Torrential Tribute x1
Dust Tornado x1
Just Desserts x1
Trap Hole x1 - extra security against dangers like Goblin Attack Force and Indomitable Fighter Lei Lei
Energy Drain x1 - use it with Mataza the Zapper and the Dark Door for death