[@Dezuel]
[u][b]Servant:[/b][/u] 
- Magic Resistance too high. Mental Resistance is a totally different skill. His magic resistance is closer to D rank. B-Rank is on par with folks who fight monsters or gods. D-Rank cancels Single-Action spells. Magic Resistance of the same degree of an amulet that rejects magical energy. Since he's an archer, he's rarely going to stick around for somebody to hit him anyway with magic.
- [b]Nitpick:[/b] You still have him listed as a Rider in your bio. 
- I recall that we discussed that Ring of Affection would create a aura around him that does the effect of the horse. Rather than actually summoning it. 

[b]Once these things are fixed, Hans Axel von Fersen is accepted.[/b]

[u][b]Master[/b][/u]
- In our PM conversations, I recall mentioning that you need to read up on how Nasuverse mage society works. In that regard, while it is possible to get magecraft from reading a book, you're usually not going to get that great of an education in comparison to going to the Clocktower, which is more or less a mage school. (It's also possible for education to be handled entirely by the family.)
- There is no 'traditional plant magic.' Like creating minions out of plant-life just really doesn't happen. The closest thing to that is Druidism, which is closer to growing trees and plants through a spiritual method. 
- If you want to keep the plant theme, there is always using alchemy to grow plants with poisons which would be closer to what you're looking for. But that wouldn't let you animate plants into minions. 
- Magic in Nasuverse tends to be an extension of real-world magical cults. Like Astrology, or animating a liquid in certain cases. But usually it takes a family generations to develop that. You're incredibly unlikely to be all that great a mage if you're entirely self-taught by books. The closest comparison in canon is in Fate/Zero, where [url=http://typemoon.wikia.com/wiki/Ryuunosuke_Uryuu]Ryuunosuke[/url] was hardly a mage, but actually a serial killer who just studied the books his family had left behind. He only qualified to have a servant because the grail needed somebody to take Caster. If you goal is somebody who is essentially a serial killer but uses some more magic, you should probably focus on alchemy, or something like curses. Since those are pretty solid for the serial killer motif. Curses are pretty easy to explain. Mostly of the "I glare at you, and you feel sick." Kind of scenario. It's not very good against other mages, usually. But a regular mage could easily cut through his plants too. This just gives you more to use against regular people on your killing sprees. Means the cops won't be able to catch you. 
- Command Seal. A Command Seal is actually a mark on your hand. They are used to make orders of your servant, or to power them up. You have three, and they are incredibly powerful. [url=https://vignette.wikia.nocookie.net/typemoon/images/d/de/Ryuunosuke_cs.png/revision/latest?cb=20160702180727]Use this one.[/url] 
- Circuits, you're most likely gonna have C-C circuits. Since you'd have to have a much longer magical lineage to have A-Circuits. 

The Master stuff is probably the most challenging of the bunch to work with. But you're really on the road to getting it done. It just feels like you didn't address all the stuff in our messages, and just a few of them.