Insomnia.dek

[Toffee.]

Insomniac, Silly Network-Investigator
LIGHT / Level 4
[Machine/Effect]
If this card destroys an Opponent's monster as a result of battle: Banish that monster face-down. Then, Change this card to Defense Position. Once per turn: You can Discard 1 "Insomniac" monster: Banish the top 2 cards of both player's decks face-down.
ATK / 1800 DEF / 1000

Insomniac, Panoramic Scribbler
LIGHT / Level 4
[Spellcaster/Effect]
When the battle position of an "Insomniac" monster you control changes: You can Special Summon this card(from your Hand). When this card is Summoned in this way, you can Target 1 card in your Opponent's Graveyard: Banish it face-down. If this Special Summoned card is destroyed by your Opponent's card(either by battle or card effect): Draw 1 card.
ATK / 1400 DEF / 1400

Insomniac, Delusional Game-Player
LIGHT / Level 4
[Psychic/Effect]
Once per turn, you can Target 1 other "Insomniac" monster you control, and 1 face-up monster your Opponent controls: Change their battle positions. Once per turn, during your Main Phase 1: You can reveal 1 monster in your Hand to your Opponent and Target 1 random card in your Opponent's hand(without looking); Banish the revealed monster, and the Target card, face-down. This effect of "Insomniac, Delusional Game-Player" can only be activated once per turn, and You cannot conduct your Battle Phase the turn you activate this effect.
ATK / 1100 DEF / 1600

Insomniac, Sagging Footsteps
LIGHT / Level 4
[Beast-Warrior/Effect]
If this card declares an attack, it is changed to Defense Position at the end of the damage step. During the End Phase of a turn in which this card declared an attack, you can Target up to 2 cards in your Opponent's Graveyard: Banish them face-down.
ATK / 2000 DEF / 500

Insomniac, Split-Tracer of Thoughts
LIGHT / Level 4
[Warrior/Effect]
When this card is Normal Summoned: Draw 1 card for each of your Opponent's Banished face-down cards. You cannot Special Summon monsters during the turn you activate this effect. The effect of "Insomniac, Split-Tracer of Thoughts" can only be activated once per turn. If this card is destroyed as a result of battle, you can Discard 1 "Insomniac" monster: Return this card to your Hand.
ATK / 900 DEF / 2000

Void of Insomnia
Spell/Field
All monsters you control gain 200 ATK and DEF for each Banished face-down card. If this card is destroyed by your Opponent's card effect: You can reveal 1 "Insomniac" monster in your Deck to your Opponent and Banish it face-down; Draw 2 cards.

Sleepless Wonder
Spell
Banish 1 "Insomnia" monster you control face-down: Each player Banishes face-down 1 card from their Hand, Graveyard, and top of the Deck, if any. During the End Phase of a turn you activated this card: Draw 1 card.

Sleep Walking
Spell
Activate if you control no monsters: Special Summon 1 "Insomnia" monster from your Deck. During the turn you activated this effect, you cannot Special Summon other monsters. You can only activate 1 "Sleep Walking" per turn.

Caffeine Rush
Spell/Equip
Equip only to an "Insomniac" monster: Equipped monster's effect is negated and it's ATK becomes 2100. If this card is removed from the field, Banish face-down the equipped monster. Then, Draw 1 card.

Dreamland
Trap
Target 1 "Insomniac" monster you control and 1 face-up monster your Opponent controls: Banish them face-down. Then, both players draw 1.

I dunno', just an idea I had.

[Mr.WHAM]

The set seems....cool enough to say the least & does a lot of face-down banishing. In particular combos you were thinking of when making it?