A Cloud's Rain Bow should act as a nice attribute changing spell card for decks. The name is nice, but a draw every turn is very nice unless they banish it or they remove the monster you placed the counter or your own level 4 monster, of which they it is likely wont the first turn. The Fog Counter is an allusion for Cloudians but only acts as a balancing factor because it gives a fog counter and will help cloudians but will push counters on other decks that use it. It will work with another generic card too in the future.

Strengths: Potential OPT draw and offers advantage first turn if your opponent has a monster that can be targeted.
Weaknesses: flimsy, forces a counter for the attribute change, after the first turn, it will most likely not be used unless in a counter focused deck. in a cloudian deck, the user will need to choose between drawing (placing counter on opponents monster) or using another card to place counters on an opponents monster(which almost always requires work or at least 1 turn of setup)
PS: Already Scripted and inside the server.
A Cloud's Rain Bow
Normal Spell
Place 1 Fog Counter on 1 face-up monster on the field, then declare 1 attribute. All monsters with that attribute become WATER until the end phase.  While this card is in your GY and you control a Level 4 WATER monster, you can pay 700 LP; draw 1 card. You can only activate this effect if your opponent controls a monster with a counter. You can only activate this effect of "A Cloud's Rain Bow" once per turn.

These generics all are very different, but most should be easy to script (just come back to the harder ones). All of them are balanced based on what is already inside of the game and I can give you in depth analysis of each card if you have questions.

Some give unique playstyles, some give help to underused decks and some just give generic support!






https://imgur.com/a/BcmAdOy

This card has been something I have been dreaming of for a long time since Patroid couldn't ever be used in even a casual roid deck. It nice artwork by a friend and it could even be used generically if you would run some garnets.(most likely it wont tho)
Strengths: It helps mill roids and actually allows you to kill the card patroid saw. It also helps spam 1 monster on the field that brings its own good effects, serving as a pseudo-floodgate. It can send Patroid to the GY.
Weaknesses: It requires you to basically run a garnet decreasing consistency, If your opponent has a spell, the last effect does nothing but send a card to the GY(still good tho). it isn't as strong as some other cards for the deck, but does help facilitate a lot easier fusion plays first turn if this is drawn and can stay on field to act as a floodgate(because it does shut down certain decks ; )


patroid Reinforcements, Equip Spell:
Activate this card by targeting 1 "Patroid" in your GY or 1 "Roid" monster you control; Special Summon it from the GY or Special Summon 1 "Patroid" from your deck, then equip "Patroid" with this card. While this card is equipped with "Patroid": effects that activate when sent to your opponent's GY are negated. When "Patroid" activate its effect, you can send 1 Non-WIND "Roid" monster from your deck to the GY, then force the target's activation. If it is a Trap Card, then negate its effect if the activation timing is incorrect, and if you do, send it to the GY and draw 1 card.(If it is not a Trap Card, return it face-down.) You cannot Special Summon monsters from the Extra Deck, except Fusion monsters, the turn you activate either of this card's effects(even if this card leaves the field).

Cloudians are still underused and not played inside the meta. The already approved cards shouldn't really be changed because they are already balanced and any buff would probably make them overpowered(unless someone wants to change them). To continue showing my love to the clouds of my youth, I have given two of their alternative playstyles cards to enhance.
Since the others are already in, I wanted to upload these and get them approved. Two new cards and 1 change of Cirrosylph (only 2 fog counters needed for search now).


Global Weather Changes
Continuous Spell
While you control a "Cloudian" monster, All monsters your opponent controls must attack, if able. Each time your opponent takes damage from a card effect you control, you can remove a fog counter from the field; Special Summon a "Cloudian Tokens"(Fairy/WATER/Level 1/ATK 0/DEF 0) to either player's side of the field in Defense Position. These Tokens cannot be tributed for a Tribute Summon, unless it is for a "Cloudian" monster. Up to Twice per turn, When a Non-Fairy "Cloudian" monster(s) is destroyed (by battle or by card effect), you can add that card to your hand, then Immediately Normal Summon 1 "Cloudian" monster. While your opponent controls "Weather Control", you cannot activate this card's effects, also negate all "Cloudian" monster's effects on the field.
This card should allow burn to have an interesting playstyle with cloudians, generating tokens, forcing attacks and most importantly allowing recursion of the non-fairies that hold the key to burn cloudian's plays. 
The first is an alright effect that allows forced attacks, of which only a few other cards hold, but don't flaunt. It gives more burn with poison and should make the battle phase a scary thing. The second effect is intended to be clunky so that you can't overuse it given it is non-opt...fog counter removal, then placing a token for some potential piercing damage ;P. It acts as a balancing effect because it isn't the best for you at all times. The third effect is its pride, allowing destruction to turn into a NS, the wispy guy can actually participate and it doesn't contribute towards special summons so that you can still run anti-special summon measures.

Cloudian's Mist, Yu
Continuous Spell
Monsters your opponent controls in an adjacent column to a "Cloudian" monster cannot activate their effects, also your opponent cannot Special Summon from the Deck or Extra Deck to those Main Monster zones. If you control 3 or more "Cloudian" monsters, your opponent cannot Special Summon from the Extra Deck. If a monster is Summoned to an adjacent Column to a "Cloudian" monster you control, place a Fog Counter on that card. While you control "Cloudian Superiority", "Cloudian" monsters you control cannot be destroyed by your opponent's card effects. You cannot Special Summon monsters from the Extra Deck.

This effect is extremely nice for the Cloud Control brothers.dek because the weakness previously was how slow it was to shut out options. This should allow it to be trickier to play into this archetype's non Extra Deck oriented versions, while also enhancing the field presence. The first effect is a mix between a weak Monarch field spell and zone destroyer, both are decent, but, when watered down and combined make for a decent effect to perfectly help this deck. In the chance that you assemble the 3 clouds(not very often given Ties isnt searchable) it grants a bonus effect that mimics domain. Another weakness that shouldn't have been one was that fog counters were nearly impossible to get on monsters at a decent rate...this brings those counters on everything!_{slight exaggeration}. The Superiority bonus offers a nice crowning effect for achieving both cards at the same time, giving even more reason to become a cloud field.

Cloudian - Cirrosylph
Wind Aqua Level 1 ATK 800 DEF 0
Cannot be destroyed by battle. If this card is in Defense Position, destroy it. If this card is Normal Summoned while you control a "Cloudian" monster: Place 1 Fog Counter on it for each "Cloudian" monster on the field. You can remove 2 Fog Counters from this card; add 1 Spell/Trap that lists "Cloudian"  in its text from your deck to your hand. You can discard this card; add 1 Spell/Trap that lists a "Cloudian" card in its text from your deck to your hand.
All I did was reduce the fog counter removal by 1, so there will be an easier time to use this card. Now you will be able to search 2 Cloud cards in 1 turn with a decent set up by reviving this card.(1 by discard, 1 by another's on summon effect from revival).

Last Comments: Only Cirrosylph is scripted(a minor number tweak), but the other cards need a professional because they are complicated to do them, I can do the basics though like your opponent must attack. Thankies for reading...Pics are attached

It is simple, but effective!

Weaknesses: This card is not really good in most decks given that it needs to be Normal Summoned and does prohibit your own attributes also. Unlike its light counterpart, it requires another monster to be on the field.
Strengths: Despite that it still does shut down some chaos decks if you manage to draw it and NS it. The end phase effect deters Chaos even more, while also rewarding you if you play it inside of its own chaos deck. It could be great counterplay for future chaos decks! Like Mekbuster and my upcoming Sol Banish deck
Thanks for reading, I'd definitely love the feedback, thank you!


Dark Level 1 Fairy Effect, 0 ATK, 0 DEF, Consecrated Light:
Neither player can Normal or Special Summon DARK monsters if they control a LIGHT monster. Neither player can Normal or Special Summon LIGHT monsters if they control a DARK monster. This card cannot be destroyed by battle while in Attack Position. During each end phase, if either player controls a DARK and LIGHT monster, you can target 1 card on the field; destroy it. You can only activate this effect of "Consecrated Chaos" once per turn.

Yeah, you should definitely think about toning the effects down a lot. I'm not going to give an in depth look at your support because Im not QC (Not even gonna say anything about that right now) Balder is way OP given that it will literally easily be summoned by any monsters and a tuner and will almost always summon 5 monster and will also summon 4000 beatsticks along with the material needed for the easy synchro summon on your opponent's turn. It also shouldnt SS itself back, but that is only the icing on the cake.
Here are some tips for that particular card, you should be able to tone down the rest(like the archetypal Soul Charge with no LP loss and "end of duel" effect that will always be fullfilled. Plz do something to their bad field spell too if you don't mind, I'd be willing to help since i'm ruler of legacy supp). So, it actually has a nice idea, and you should expand upon what it brings to the table. It allows that card to be played using another engine, but in order to continue you must still use many nordics. To capitalize on this, maybe you could prohibit Extra Deck summons from the turn instead or keep it like it but put another restriction on it (up to you). The second effect needs to reworked entirely because ya know #+4 . I'll let you think of a better way, should be easy(not making it so strong). Maybe you could restrict it to synchro summon using monsters this card points to instead depending on how you rework the other effects. just remove the last effect becuase it gives a link 3 back to the field. if you want recursion, make/use other cards. cards shouldn't have too many effects built on that card even if alllll of them are balanced the card won't be balanced it it has too many effects

Ex:
(balanced individually, but too many effects make it unbalanced): Pay 1000 LP and discard 1 card; activate 1 of the following effects:
* Draw 1 card and banish 1 card from your GY, face-down.
* Flip 1 monster on the field, face-down, and if you do, gain 2000 LP.
* Gain 2000 LP, and if you do, draw 1 card and banish 1 card from your GY, face-down.
During the end, if you summoned less than 3 monsters this turn, draw 1 card. While this card is in your GY, all monsters you control gain 100 ATK and DEF. You can banish this card from the GY, then target 1 card you control; banish that target, face-down and activate 1 of the following effects:
* Draw 1 card and gain 200 LP
* Flip 1 monster on the field face-down, then gain 200 LP, and if you do, banish 1 card from your GY, face-down.
You cannot activate this effects the same turn blah. 1 each effect per turn.

I'm not going to give an in-depth analysis, because I'm not part of the team for that and Idc what they say, but take or leave muh thoughts, I give them only to help <3
Theme: I personally love Vocaloids, but I do not think they should be "When flipped face-up" deck, because they are meant to shine! Think of Trickstars, but do something unique.
Art: Where did you find them??? But besides how good the art is, the words on the card are a little off. What do you use, maybe you should ask a person in the discord for help.
Balance: Try to avoid Special Summons from deck with an easy plus effect chain(Like activate any V- Card, NS meiko, SS Luka, Luka Eff to SS Miku, Miku turns your opponent's monsters FD and inflicts damage, then you use Meiko's Effect to flip Luka and add 1 to hand) From 2 cards, you've gained 3 cards(1 to hand others to field) all from your Main Deck without Extra Deck help.
The V- Field Spell does not do much, you have some effects that do not do much, despite it doing good, a field spell that only doesn't give value to the archeteype is something that isn't good. Don't get me wrong, it is an alright effect, but you should reach for some uniqueness besides the gain ATK and give protection effect.
Also, Discarding to add is alright since it is OPT and can be recycled with your other cards, but you should rethink these cards all together.
All of these are opinions: Disclaimer
Have fun in your card making, make sure to ask for help!

Fiend of Curse is the counterpart of Curse of Fiend. this is to boost decks that can switch battle position and rewards a player for using Curse of Fiend. Most likely, the last effect will only be used in decks that can mill the garnet, but the first effect should help some underused decks seem a little more viable since they get a pot of greed that needs another card to switch it. A very great generic!
Weaknesses: Hurts consistancy of deck similar to pot of desires, but only really usable inside of decks that can switch battle position. It hurts even more if you try to use the Curse of Fiend.
Strengths: A draw 2 is very good, self-explanatory, it should help increase the power cap of those that can use it. It can SS itself after you draw it which helps it a great deal!

Pic also here:


Level 1 DARK Fiend, ATK 0, DEF 0:
Fiend of Curse
At the start of your Standby Phase, you can Special Summon this card from your hand. When this card's battle position is changed: banish the top card of your deck face-down, then draw 2 cards. You can only activate this effect of "Fiend of Curse" once per turn. During each end phase, you can target 1 "Curse of Fiend" in your GY; return it to your hand, then draw 1 card.