ONBOROBOS; BECAUSE LOL

[Toffee.]

http://yugioh.wikia.com/wiki/Junk_Robot

[spoiler=Monster]

You can Banish 1 "Recyclobot" monster in your Graveyard: Special Summon this card(from your hand). You can only Special Summon 1 "Recyclobot Clenaga" this way once per turn. You can send this face-up card you control to the Graveyard to add to your hand 1 "Recyclobot" monster from your Deck or Graveyard, except "Recyclobot Cleanaga". You can only use this effect of "Recyclobot Cleanaga" once per turn. This card can only be used as an Xyz Material, for the Xyz Summon of a "Recyclobot" monster.

You can Banish 1 "Recyclobot" monster in your Graveyard: Special Summon this card(from your hand). You can only Special Summon 1 "Recyclobot Cyclacooda" this way once per turn. You can send this face-up card you control to the Graveyard to add to your hand 1 "Eco Spell" card from your Deck or in your Graveyard. You can only use this effect of "Recyclobot Cyclacooda" once per turn. This card can only be used as an Xyz Material, for the Xyz Summon of a "Recyclobot" monster.

You can Banish 1 "Recyclobot" monster in your Graveyard: Special Summon this card(from your hand). You can only Special Summon 1 "Recyclobot Persokong" this way once per turn. You can send this face-up card you control to the Graveyard to add to Target 1 face-up "Recyclobot" monster you control: It gains 1000 ATK until the End Phase. You can only use this effect of "Recyclobot Persokong" once per turn. This card can only be used as an Xyz Material, for the Xyz Summon of a "Recyclobot" monster.

You can Banish 1 "Recyclobot" monster in your Graveyard: Special Summon this card(from your hand). You can only Special Summon 1 "Recyclobot Yakangaroo" this way once per turn. You can send this face-up card you control to the Graveyard to add to send up to 2 "Recyclobot" monsters from your Deck to your Graveyard. You can only use this effect of "Recyclobot Yakangaroo" once per turn. This card can only be used as an Xyz Material, for the Xyz Summon of a "Recyclobot" monster.

[/spoiler]
[spoiler=Eco Spell]

Banish 2 "Recyclobot" monsters from your Deck; add 1 "Recyclobot" monster from your Deck to your hand. During either player's turn, you can Banish this card from your Graveyard and Target 1 "Recyclobot" Xyz monster you control: Until the End Phase, It gains 700 ATK and is unaffected by the effects of Spell/Trap cards. You can only activate 1 "Eco Spell - Reduce Waste" effect per turn, and only once that turn.

Target 2 of your Banished Level 4 "Recyclobot" monsters: Special Summon both Targets. During your turn, if a "Recyclobot" monster you control was sent to the Graveyard by it's own effect, you can Banish this card from your Graveyard: Send 1 "Recyclobot" monster from your hand or Deck to the Graveyard. You can only activate 1 effect of "Eco Spell - Recycle" per turn, and only once that turn.

[/spoiler]
[spoiler=Xyz]

2 Level 4 "Recyclobot" monsters.
If this card is Xyz Summoned, you can Target 2 "Recyclobot" monsters in your Graveyard: Return them to the Deck, and Draw 1 card. This effect of "Recyclobot Mammocannon" can only be activated once per turn. During either player's turn, you can Detach 1 Xyz Material from this card and Target 1 "Recyclobot" monster you control: It gains 300 ATK until the End Phase of that turn.

3 Level 4 "Recyclobot" monsters.
When this card is Xyz Summoned: Return all of your Banished "Recyclobot" monsters to your Graveyard. Once per turn, you can Detach 1 Xyz Material from this card and Target 1 face-up Level 4 "Recyclobot" monster you control: Until the End Phase, it gains 1000 ATK but cannot attack directly. During the End Phase of a turn in which the Target destroyed an opponent's monster by battle, inflict damage to both players equal to it's current ATK. Then, destroy it. If this card is removed from the field by your opponent's card effect, you can Special Summon 1 Level 4 "Recyclobot" monster that is either Banished or in your Graveyard.

4 Level 5 EARTH Machine-Type monsters.
You can also Xyz Summon this card by Banishing 2 "Recyclobot" monsters in your Graveyard and by using a "Recyclobot" Xyz Monster you control as the Xyz Material. (Xyz Materials attached to that monster also become Xyz Materials on this card). You cannot Xyz Summon this card during a turn in which you Xyz Summoned a "Recyclobot" Xyz Monster. Once per turn, you can either attach 1 "Recyclobot" monster from your Graveyard to this card as an Xyz Material, OR you can Detach 5 Xyz Materials from this card: Send all cards on the opponent's side of the field to the Graveyard. While this card has 3 or more Xyz Materials, it is unaffected by your opponent's card effects.

[/spoiler]