The Realization when I actually put effort in developing Villains...
I actually make them absolutely Terrifying
Okay So for some context. When I start certian villains they sometimes come out bland and not all that serious. That or they're not really not my focus persay.
When I decide to rework them into their own stories and are given time to actually fluorish into their own thing.
How he started out: He was a Blood Elven Gajinka of Wack Lizardi from Felix the Cat the Musical. Some times a ringleader that went by the name of Antonio (yes this did come back with Alameth), But at the very beginning kinda was a joke. Also Overly Dramatic and pretty Theatrical.
What he turned into now: Chessmaster arrogant prick that is the literal head of the Winter Court. He knows his own power, and knows he's a predetor and is perfectly fine in people seeing him that way. Also very fae in his mindset. Dislikes his twin brother but gets that killing Lantis is a bad move and wishes he just doesn't get in his way all the time. Has the temperment of literal Winter. So can be as dangerous of a Blizzard or as cooling and fridged as the arctic. Did infact however kill his own mother and pinned it on someone else. Also made sure to have his father die a horrid death so he could take over.
How he started out: First kinda Asnazi (the first king of the Mice folk) adjacent, then was a AU version of the Mouse King from The Nutcracker Prince... And then more of a bumbling fool version of this version.
What he turned into now: Fae Logic King that doesn't give any rat's ass (no pun intended) about human soceity norms. Likes their fashion but that's about it and thinks that humans are absolutely idiots for putting so many rules on everything. Absolutely Hellbent in murdering his twin brother Hansel (the Nutcracker) and that hate is so bad that he would be triggered at even a fauxsimilie of him. Feeling like his brother gets everything when he was the spoiled one of the two. He is however afraid of Ca'thul cus you don't tick off the King/Kelpie of the Winter court. AKA: "Father Winter". But easily could have beef with the Autumn court.
How he started out: He origonally was suppose to be an Ice King named Calder. Based on Flameheart from the anime series Socerer Stabber Orphen but a ruler and also he was based off of the song "Tragic Kingdom" by No Doubt when I was working with Celestia "Tina" Rotto Veira and her story. I actually didn't get far with this direction because I didn't know what to do with him really.
What he turned into now: an Ice Kitsune who works for Ca'thul (and other villains) as a Butler. Waldo isn't his true name as it's owned by whoever he works for at the time. This direction was created for the "Masque of the Red Death" story idea on DA that was a group at the time where Waldo worked for Thrax with a few other servants. That's where he developed into a far more terrifying person because he's the butler that forever smiles but if he opens his eyes, then you're in deeper trouble. he still looks based on Flameheart but with longer hair tied back as more foxlike features. (He also kinda creeps out Jadolf and Peirios since they also origonally had that base reference.) Enjoys playing "games" (usually resulting in the death of the other).
How he started out: First. he was an AU version of Mephelis from Sonic 06. Turned Dark Furred Fox to contrast from Gin and Tonic. Then Gin and Tonic turned into Tonic who was a siliver Kitsune. Jackle then essenually turned into an "even darker" AU of Ryuma From Shinzo kinda? He was suppose to contrast from the AU version of Ryuma that replaced the the Mushrambo/the three parts and was a Black furred 9-tailed Kitsune still contrasting Tonic as well. He was terrifying within this version but he wasn't to the extent he could have lived up to.
What he turned into now: Bringing back the Mephelis references I pulled in more from the Egyptian lore since Solis was suppose to be the "sun god". After remembering things I learned when I first researched Egyptian mythology, I remembered Apep would have fitted Mephelis more and thus Jackle/Apep became what he is now (I also combined him with the evil Pharoh from Gods Reborn and thus this happened). The Eldtrich Egyptian God of the Void wanting to devour the sun. Though he'll find more amusement in watching Asfar dealing with the chaos now he's awake, but being a god who wasn't suppose to come into the phsyical plane he can actually warp reality around him if he let loose his own power. Also the AU Ryuma was changed into a Eldtrich Being Scholar named Nous Mimir and he woke up Apep much to Asfar chagrin. Whoops.
How he started out: Created him purely as a joke. He was based on the song "You'll be Back" from Hamiltion and he wasn't suppose to be an actual threat as he was bothering Tetsuko of all people. Vain, purely about power, and he absolutely hated Ca'thul, his father. Full stop. Tetsuko however could actually kick his ass easily because she was a war mage and he was more an annoyance than the actual problems she was dealing with.
What he turned into now: Where... do I even begin? He still has a lot of his mannerisms but it's more.... a Mixture of Eldtrich Horror and Fae logic happening. It's weird. He still absolutely hate his "bio" dad (Ca'thul) But he was raised by someone who doesn't think on the level of Fae due to that mixture. He's still hyperfocus in power but in a way that he wants to be seen, and he's Obessed with Elister but in a far more dangerous way. In a lot of ways he's more like his father than he cares to admit. Methodical, precise and absolutely okay to murder an subordiant if they ruin things. However... He has more of a temper than his father does and a little bit mecurial due to it. While rather new to his position as King of the Griffins (as a Hippogriff), he's proving he can wrangle the other Griffins below him into listening much like how his Kelpie father is able to wrangle the Winter Fae. Which is terrifying when you think about it. Still Vain, but there's more depth to that vanity than before, it's more him saying "I won't be ignored any longer" type of way.
Those are just a few examples but yeah, those were also the most prominate and drastic of changes when given time to breath. I was thinking back and realized it's a pattern with me, and thus had to write it down xD.