here's a Set of Cards I made up myself I hope you enjoy them.

Monsters.
Monster Name-Circo Jester
level-4
Attribute-Dark
[Fiend/effect]
You can Special summon this card by Banishing another Circo Monster in you'r Hand.
ATK/1200 DEF/300

Monster name-Circo Clown
Level-4
Attribute-Dark
[Fiend/effect]
When this Card is Normal Summoned Banish another Circo Monster from you'r hand to special summon another Circo Monster from you'r hand.
ATK/1000 DEF/500

Monster name-Circo Axe-man
Level-5
Attribute-Dark
[Warrior/effect]
While attacking this Monster gains 1500 more ATK until The end of The Battle phase.
ATK/1500 DEF/1000

Monster Name-Circo Phantom
level-6
Attribute-Dark
[Fiend/effect]
One per turn you can Target one Circo Monster in you'r Banish Zone then this monsters Name,Effect,Attack and,Defense points become The same as that Monster until The end of you'r Opponent's next turn.
ATK/0 DEF/0

Monster Name-Circo Bombman
Level-4
Attribute-Dark
[Fiend/effect]
Each time you gain Life points inflict 500 damage to you'r Opponent.
ATK/1500 DEF/200

Monster Name-Circo Jokester
Level-3
Attribute-Dark
[Fiend/effect]
Once per turn you can target 1 Monster on you'r opponents side of The field and then Banish both that and this card.
ATK/500 DEF/500

Monster name-Circo Colossal Clown
Level-8
Attribute-Dark
[Fiend/effect]
Once per turn you can Target One Circo Monster in you'r Banish zone and,then equipped it to this card, (Max 1)
Then this Monster gains ATK and,DEF points equal to That Monster's ATK and,DEF Points.
If this Monster would be destroyed by Battle or by a Card Effect Destroy the Monster equipped to this card instead.
ATK/2000 DEF/2500

Spells.
Spell Name-Circo Trio
Normal Spell
If you have two or more Circo Monsters on you'r side of The Field you can Special summon one Circo Monster from you'r Banish Zone in face up Defense mode.

Spell Name-Circo Funeral
Normal Spell
Target three Circo Monsters in you'r Banish zone with The same level and special summon them onto The Field,Immediately after you activate this effect use The Monsters you summoned for an Xyz Summon.

Spell Name-Field of Unlimited Light
Field Spell
All Monsters on both players sides of The field become Light attribute monsters.

Spell Name-Circo Box of tricks
Quick-Play spell
Declare 1 card type(Monster, Spell, or Trap) Then draw one card. If The card you drew was The type you declared half you'r opponents Life points but if it is not then half you'r life points.

Spell Name-Circo Life Giver
Continues spell
Once per turn when a Circo Monster attacks gain 500 Life points.

Traps.
Trap Name-Clown Scare
Counter Trap
When one of you'r Circo Monsters is targeted for an Attack you can negate The Attack and,then inflict Damage to you'r Opponent equal to The Attacking monsters ATK.

Trap Name-Lights Shadow
Normal Trap
When a Light Monster is destroyed by Battle and sent to the graveyard Special summon one Dark attribute from you'r deck with the same level as The destroyed monster and then end The battle phase.

Xyz Monsters.
Monster name-Circo Ring Master
Rank 4
3 level 4 Circo Monsters
Attribute-Dark
[Spell-caster/Xyz/effect]
Once per turn you can Detach one Xyz Material to Target one Monster on you'r Opponents Side and,turn it into a Circo Monster until The end phase,if this Effect resolves Then take control of The Monster you Targeted until The end phase.
Once per turn if this Monster runs out of Xyz Materials you can Half you'r Life points to target 3 More Circo Monsters in you'r Banish and,then add them to this Monster as Xyz materials.
ATK/2500 DEF/1300

Monster Name-Number 144: Light Orb
Rank 4
3 Level 4 Light Monsters
Attribute-Light
[Machine/Xyz/effect]
Once per turn you can Detach 1 Xyz Material from this card and then target one monster in you'r graveyard and equip it to this Monster (Max 1) then if this monster would ever be destroyed by Battle or a Card effect you can destroy that monster instead. If this Card would ever be destroyed by Battle or by a card effect detach 1 Xyz material from this card instead.
ATK/2100 DEF/2200

Monster Name-Number C144: Chaos Orb
Rank 5
4 Level 5 Light Monsters
Attribute-Light
[Machine/Xyz/effect]
When ever this Monster attacks an Opponents Defense Position Monster inflict piercing damage to you'r opponent.
If this card has "Number 144: Light Orb" as an Xyz Material it gains this effect.
●Once per turn you can Detach 1 Xyz Material from this card and then target one Monster in you'r Banish Zone equip that monster onto this card. This Gains ATK equal to The ATK of that equipped monster and if this monster would ever be destroyed by Battle or a Card effect destroy the equipped monster instead.
ATK/2200 DEF/2300

(We'll that's it I hope you like them )