Holy grail war participant you've been selected

Why there's no question about desire for Grail? (unlimited gacha rolld, huh?)

Well,
- Reaction: Neat
- Prepared: Somewhat? I guess, I would be a Necromancer like Kairi Sisigou
- Thoughts: No regrets. If everyone is my enemy, they shall come
- Grail War: I preferred the Fuyuki War from Zero
- Servant: Either Jack the Ripper, King Hassan (Gramps) or Mordred
- Most likely servant: Cursed Arm, Hundred Personas, Serenity, King Hassan
Damn, going down the path of the bad mage killer...

Let's see... I think I'd prefer being preselected, because then I could carefully plan about what catalyst to use and so on. Being a last minute addition sounds like a lot of stress and seriously limits what you could have summoned if you had more time. I don't know how I'd react, but I probably wouldn't be thrilled at the prospect of being at war. If I was a mage, though, then I'd fully prepare myself for sure. No doing anything half-assed if my life is at stake.

I think I'd adopt a more careful approach. Instead of recklessly walking by myself or picking fights with anyone, I think I'd be more comfortable gathering information in the shadows, learning everything I cas about my enemies before making my move. With that in mind, an Assassin class servant, or someone as stoic and professional as Arturia would be ideal for me. Needless to say, my greatest concerns would be falling victim to this war or losing my servant.

I wouldn't go as far as expecting to get a specific servant unless a had a really good catalyst. But I'd much rather summon a servant that is easy to interact with than someone powerful and antisocial. I admire Gilgamesh and Ozymandias for the greatness they achieved, but I know for a fact that I wouldn't stand being near them for too long unless we were all drunk. So I'd be fine with anyone as long as they didn't piss me off and we could work well together.

Finally, I wouldn't expect to summon anyone amazing since I'd probably not be able to put my hands on a good catalyst, but as I mentioned, I wouldn't mind whoever it was as long as we could get along. As for my wish - assuming the grail isn't some malevolent goo who would distort my wish into something macabre, I don't know what it'd be. I have ambitions, but I'm not sure I'd want to rely on the grail to achieve them.

Reaction? probably not surprised. happy that my knowledge of mythology and random occult things pays off, but immediately disappointed when I learn that it takes many generations to produce a half decent mage.
Thoughts? Heck I might as well, my life is boring and monotonous, and I want to die doing something interesting. Might lose my V card if I summon a female servant and actually figure out how mana transfers work. I would care for my servant, unless I get a really annoying one like Liz, or Blackbeard. I would probably prioritize being a good person over being a good master, putting the safety of me and my servant above victory. Death? I dont want to die, but now I have something to fight for, even if its just a hypothetical wish that I dont know about yet. I will find one over the course of the war.
Which Grail war? Hoooboy. Apocrypha would be Ideal, as thats a faction battle and I would have allies to make up for my lack of master potential. the fallout would be disastrous, but thats the result of fourteen heroic spirits beating the mana out of each-other until the most powerful on one side remain, then repeat. I would by then have made an effort to create backup plans, double crossing my opponents (not fatally, unless I just really hate them.)
Servant choice? Tamamo no Mae, the OG version. any decent caster works, but Tamamo would be Ideal due to very simple reasons you have probably already guessed.
Realistically? Probably Lancer Valkyrie. actually, that would also be Ideal. I am a descendant of Erik the Red, so a Scandinavian servant is likely I think. Perhaps Erik himself as a Rider. Sigurd or Hrolf Krati as a saber. As Archer... probably not an archer. caster could be Gottstalk Grimmi Nikulasson, an Icelandic Bishop who created a demonic grimoir. the vikings... weren't known for subtlety. the one Assassin I could think of would be Loki, but I would straight up die from mana loss if I summoned him, regardless of whether he has a vessel or not. berserker? too many to name. hopefully I would get Valkyrie.