So hows this, for an idea?

[Toffee.]

Basically this set will stem from this topic: http://forum.yugiohcardmaker.net/topic/311988-itt-extra-deck-is-now-part-of-the-main-deck/

Unbound Position Driver
EARTH / Level 4
[Warrior/Effect]
If this card is Normal Summoned: You can add 1 "Bonded" monster from your Deck, Graveyard, or that is currently Banished to your hand. If this card is destroyed by your opponent's card(either by battle or card effect): You can Special Summon 1 "Unbound Position Driver" from your hand or Deck. If this card is Summoned from the Deck, this card cannot be used as a Synchro or Xyz Material monster.
ATK 1800 / DEF 1400

Unbound Scatterbrain
EARTH / Level 4
[Psychic/Effect]
Once per turn, you can Special Summon 1 "Unbound" monster from your hand, except "Unlinked Scatterbrain". During the turn you activate this effect: You cannot Summon monsters during the turn you activated this effect, except "Bonded" and "Unbound" monsters. Then, your opponent cannot activate cards or effects in response to the Summon of "Bonded" monsters. This effect of "Unbound Scatterbrain" can only be activated once per turn.
ATK 1400 / DEF 2000

Unbound Fighter, Novaman
EARTH / Level 4
[Warrior/Effect]
Once per turn, you can Banish 2 "Unbound" monsters with different names from your Graveyard: Add to your hand 1 "Bonded" monster from your Deck. Once per turn, this card cannot be destroyed by battle. While this card is equipped to a "Bonded" monster, that monster gains 300 ATK and inflicts piercing damage.
ATK 1100 / DEF 1100

Unbound Gyrocore
EARTH / Level 4
[Warrior/Effect]
Must be Special Summoned by it's own effect, and cannot be Summoned by other ways. If you control a Face-up "Unbound" monster, except "Unbound Gyrocore", you can Special Summon this card(from your hand). You can only Special Summon 1 "Unbound Gyrocore" this way once per turn. You can Tribute this card: Add to your hand 1 "Bonded" monster from your Deck. You can only activate this effect of "Unbound Gyrocore" once per turn.

Bonded Juggernaut Ore
FIRE / Level 8
[Machine/Effect]
If you control 2 Face-up "Unbound" monsters in your monster card zones, you can activate this effect: Special Summon this card(from your hand). Then, Target 2 Face-up "Unbound" monsters in your monster card zones and equip them to this card. Once per turn, you can send 1 "Unlinked" monster equipped to this card to the Graveyard and Target up to 2 Spell/Trap cards on the field: Destroy them. This effect of "Bonded Juggernaut Ore" can only be activated once per turn. If this card would be destroyed by a card effect, you can send 1 "Unbound" monster equipped to this card to the Graveyard instead.
ATK 2600 / DEF 1300

Bonded Plasma Dragon
FIRE / Level 8
[Thunder/Effect]
If you control 2 Face-up "Unbound" monsters in your monster card zones, you can activate this effect: Special Summon this card(from your hand). Then, Target 2 Face-up "Unbound" monsters in your monster card zones and equip them to this card. Once per turn, you can send 2 monsters equipped to this card by this card's own effect to the Graveyard and Target 2 Face-up monsters on the field: Destroy them. This effect of "Bonded Plasma Dragon" can only be activated once per turn.
ATK 2200 / DEF 2300

Bonded Sabotage, Master of Deception
FIRE / Level 8
[Machine/Effect]
If you control 2 Face-up "Unbound" monsters in your monster card zones, you can activate this effect: Special Summon this card(from your hand). Then, Target 2 Face-up "Unbound" monsters in your monster card zones and equip them to this card. If the opponent activates the effect of a Trap card, you can send 1 "Unbound" monster equipped to this card to the Graveyard: Negate the activation and effect of that card, and destroy it. Then, until the End Phase of this turn, the opponent cannot activate Trap cards. If this card destroys an opponent's monster by battle: Draw 1 card.
ATK 2500 / DEF 2000

Teamed-up Bonding Zone
Spell / Field
Face-up "Bonded" and "Unbound" monsters you control gain 100 ATK and DEF. Once per turn, you can reveal 1 "Bonded" monster in your hand to your opponent: Special Summon 1 "Unbound" monster from your hand. The Summoned monster cannot be used as a Synchro or Xyz Material Monster. If this card is removed from the field by your opponent's card effect, add to your hand up to 2 "Bonded" monster from your Deck.

Binding Together
Spell
Activate by revealing a "Bonded" monster in your hand to your opponent, while you control a Face-up "Unbound" monster that was Normal Summoned this turn. Special Summon 1 "Unbound" monster from your Deck. Immediately after this card resolves, activate the effect of the revealed monster. Only "Bonded" monsters can attack during the turn you activated this card. You can only activate 1 "Binding Together" per turn.

Perma-Bind
Spell / Quick-Play
Send 1 "Bonded" monster you control with at least 2 "Unbound" monsters equipped to it to the Graveyard: Draw 3 cards. Then, you can Target 1 Face-up monster your opponent controls: It looses 800 ATK until the opponent's next End Phase.

Bonds of Time
Trap
Activate if the opponent controls a monster and you control no monsters. Pay 1000 Life Points. Special Summon 1 "Bonded" monster from your Graveyard, and if you do, Target 2 "Unbound" monsters in your Graveyard: Equip them to the Summoned monster.

Instant Bonding
Trap
Activate if you control a Face-up "Unbound" monster: Add to your hand 1 "Bonded" monster from your Deck.