This is my take at a "Fluffal"/"Frightfur" deck. The group of archetypes consisting of "Fluffals", "Edge Imps" and "Frightfurs" work in unison to create a strong, consistent and OTK-able Fusion deck with various combos and approaches regarding gameplay, and its overall interactivity explains why the deck is so widely popular.
The Main Deck is all about fetching the right cards to allow for multiple Fusion summons and to build a board that can clear the way and go for the face. To reach such a goal, we have a number of solid cards to work with. "Fluffal Dog" is one of your various searchers and fetches other "Fluffals" and "Edge Imp Sabres" upon being summoned from the hand, which can be easily combined with "Fluffal Penguin", which allows for the Special Summon of another "Fluffal" from the hand. "Fluffal Penguin" is also very useful as Fusion material, since it allows you to draw two cards and discard one when used for a Fusion, which is a definite plus and potential setup depending on what you discarded. "Fluffal Owl" is a searchable searcher for "Polymerization" as well as having a Fusion effect on it own, while "Fluffal Cat" can reuse "Polymerization" when it is used as Fusion material. Both "Fluffal Owl" and "Fluffal Cat" are only at one, since they are searchable and not really necessary at higher numbers. I also added one copy of "Fluffal Angel" for testing purposes, which mostly comes into play as a Spell card that can revive monsters, but is more searchable than other options the deck would have at its disposal (with "Suture Rebirth" being unsearchable and "Frightfur Reborn" only being able to revive the wrong cards most of the time; both of those are not in the deck for said reasons).
One cannot talk about "Fluffals" without mentioning "Toy Vendor". This card does pretty much everything, from card draw and searches to setup and summoning. For this reason, there are also a few cards in the deck that can interact with the three copies of "Toy Vendor": "Fluffal Bear" can be discarded to search for them, "Fluffal Dolphin" can fetch them back from the graveyard while also having a very useful "Foolish Burial" effect alongside that and "Fluffal Wings" can destroy it for a draw two effect with an added search, meaning a major plus in card economy.
On the "Edge Imp" side of things, I am running one copy of "Edge Imp Sabres", since it is easily searchable via the plethora of effects at your disposal while also featuring its own revive effect (which can also be used to setup "Toy Vendor's" summon effect), "Edge Imp Chain" is at three since it searches for cards and the newer "Edge Imp Scythe" is also featured at three copies for the ability of Fusion summoning monsters as a Quick Effect during the opposing turn without the need of using a Fusion Spell.
The Spell line-up is pretty standard for a "Fluffal"/"Frightfur" deck: Three "Polymerization" are absolutely paramount since you will Fusion summon a lot and can search for it in your own archetype, three "Toy Vendor" are there for all manner of effects and interactions, three copies of "Frightfur Patchwork" for being a straight +1 as a searcher, three "Foolish Burial Goods" mainly to send "Toy Vendor" directly to the graveyard to trigger its search effect and both one copy of "Frightfur Fusion" for "Frightfur Tiger" and "Frightfur Wolf" shenanigans and one copy of "Frightfur Repair" mostly for the secondary effect that allows you to summon additional monsters from the hand. The last three slots I filled with one "Foolish Burial" to ditch either "Edge Imp Sabres" or "Fluffal Wings", one copy of "Twin Twisters" for easy backrow removal and to possibility to destroy my own "Toy Vendor" alongside some opposing backrow to profit from the search and one copy of "Super Polymerization" to go into "Starving Venom Fusion Dragon", which not only is a nice fit for a "Frightfur" deck due to its effects but also gets rid of opposing monsters in the process. These last three choices are absolutely debatable, but I tend to keep my decks fairly budget-friendly and the copies of "Infinite Impermanence" and "Forbidden Droplet" that are currently found in other "Fluffal"/"Frightfur" decks are fairly expensive.
The Extra Deck is also pretty straightforward: "Frightfur Cruel Whale" is all the rage right now, and for good reason since it offers destruction, setup and ATK boosts in one fell swoop. "Frightfur Kraken" allows for non-destruction removal and multiple attacks, "Dangerous Frightfur Nightmary" can grow into a sizeable beater while bringing her own setup and protection, "Frightfur Tiger" clears the way and buffs your monsters while "Frightfur Wolf" potentially attacks for 5+ times; "Frightfur Sheep" is probably the least useful member, but has its merit in certain matchups. On the more generic side, I run one "Bahamut Shark" (easily summonable via "Fluffal Penguin" and the added summon of a "Fluffal Dolphin") to summon "Toadally Awesome" and steal opposing cards. The "Cross Sheep" is there for even more insanity with the right board, since it allows for the resummon of "Fluffal Penguin" or other monsters which can use their effects multiple times per turn if they leave the field in some way.
My list is actually pretty similar to various other "Fluffal"/"Frightfur" lists, but after reading through the archetype you will automatically find certain ratios and cards to be desireable, which is why so many people come up with similar lists and results when it comes to "Fluffals" and "Frightfurs".
If you want to know more about the archetype in general and maybe take a look at an analysis that features all the cards the three archetypes have on offer, feel free to visit my archetype analysis for "Fluffals", "Edge Imps" and "Frightfurs" on my blog under this link: https://cubiccreativity.wordpress.com/2020/08/30/archetype-analysis-fluffal-edge-imp-frightfur/.
570
390
480
180
