Even though I don't need her anymore I hope MontMonts SC change goes live tomorrow along with the collab.... still might do it depending on how good she becomes because an cleansing version of Angelica would be hella strong and they'll combine well for double healer fights.
I don't think it's anywhere close to ten times the amount, of the top of my head:
Nerfed: Tieria, Elson, Rikoris, Fluri, Chaos Sect Axe, Lorina (was this pre-global?)
Buffs: Tama, ML Sez-Tenebria-Lots-Clarissa-Cidd, Tywin, Cecilia, Basar, Zerato, Silk, Crozet
However the raw numbers don't really present an accurate picture. In general, really other than Tama, the buffs are minor and the nerfs are often crippling (Tieria might as well have been deleted). The buffs are also generally to super rare ML units or very rare 5* units whereas the nerfs are to "bread and butter" 3* units so more players are affected by them.
Minor buffs can elevate a character from mid tier to near the top, it's arguable that Tywin is better than Krau after his last buff... and even though I went for Krau on his banner I'm inclined to agree. If Tenebae got the same buff as Tywin she'll be one of the best pve units and cleave pvp units......
Why even list Axe God and Lorina under nerfs and not mention them under buffs when they got SC..... a SC is a buff period.
Rikoris was buffed too much, heavily nerfed in response and given an average SC afterwards.
November patch alone.
*****
Vildred buff
****
Rose buff
Rin buff (saw a guy on reddit get called stupid by multiple because Rin was never buffed according to them...)
Wanderer Silk buff
Guider Aither buff
***
Fluri had her trust rune (R&L proc) go from 10% to 15%, Light step dmg increased by 30%
Judith buffed speed from 112 to 117 which is why she's used in Arena today at level 40 as the best CR pusher as long as Hurado (and soon to be Baal) aren't around.
Azalea buff (did nothing but still a buff)
Mucacha buff (made him too strong)
Carrot buff (did nothing)
Hurado buff (Just gives him a chance to decrease CR when he strips the entire team, nothing major)
11 characters buffed, not a single nerf.
Sometimes what you think is a minor buff is a big deal, I saw one youtuber have "Where's Hurado buffs?" in the title of his buff/nerf discussion vid.... of last months changes..... That comment really aged well, Hurado's only everywhere in PVP right now.