So I got asked how I write c!phil and that got me thinking about it and so, without further ado, the elements of how *I* write c!phil.
Note: this is not the most usual way to write phil cause I'm not very into the dadza thing so YOUR MILAGE MAY VARY but anyways:
Loner. As on other servers, c!phil really wants to fuck off into the woods at the first opportunity. However, people still want to talk to him (because friends, because he was the only person online, etc), so he was fairly frequently in company, but he very seldom sought it out. Those are people showing up his house, not the other way around.
He's cautiously friendly to people, including the minors of the server who show up phil phil phil phil phil, but he's not particularly dad about it. If you've ever worked with someone 15 years older or been the person working with someone who it's their first job and you're the old guy— it's like that. A certain amount of patience of expecting them to be chaotic teenagers, but he treats them as peers as much as possible. He's dad to one character, and that character is an adult, and he treats that character as an adult as well. This is also part of his (occasional) exasperation with dealing with Ghostbur, I think, because Ghostbur not only hauled directly on the grieving part of the lore, but Ghostbur also resisted being treated like an independent peer. This is also part of his delight in dealing with Techno, because Techno treated HIM like a peer instead of an old guy/dad. Phil will deal with it, if people are treating him like a dad, but it's always something he's on high alert about if it's happening, he does not fall entirely easily into that role.
Canonically grieving if you're writing canon, but boy is he Emotionally Repressed about it. Like a year after November 16th I remember emduo blogs celebrating because Techno had said something that indicated that Phil talked to him about his son's loss, and the thing is that was very much in question up until that point. He Does Not Talk about his trauma or grief unless forced to. But if he gets forced to— yeah. There's a weight there that he is constantly carrying.
Loves to laugh. If you get him around Techno they're constantly doing bits at each other, he's losing it at things Tubbo says, he laughs easily and often. This does not mean that he's not grieving (I do this too), just that— you know the school of thought that says that grieving is personal? He's pushing that shit down, that's not to bring up and include in an ordinary conversation, that would be rude to inflict on others
To return to the emotionally repressed point, not emotionally demonstrative. Techno says "for you the world, phil," and phil goes "aw m8". This does not mean he does not care, but he's not gonna say it. Kinda guy to show up and ask where we're basing together, not say "I missed you".
Always got a project, always doing something, even if he's just digging gravel or searching for copper. He's got a decent amount of reserves of supplies built up but he doesn't live or build particularly lavish. The house is spawn proofed, there's trident pools to the nether portal, he's got a training room in the basement— but the spawn proofing is snow and the training room is floored in dirt. The walls are cement and sea lanterns (which you can get by standing in the guardian farm for a couple hours). Contrast this with Foolish's incredible desert temple builds, and Phil ends up looking a lot like a reclusive hermit. He's gonna make his house look nice, but he's also living as though someone might come along and torch it at any moment.
Values any objects because of the connection to the people they represent, not because of the object. His ender chest is full of things like a character's first pickaxe and the friendship emeralds, not valuables (contrast this with his ender chest in hardcore).
PRACTICAL. Knows a lot about the game and how things work, and is making calls based on that plus the path that puts him least in danger. Will be out and about in full enchanted netherite to check on the cows.
Always knows where his exits are. The Philza Minecraft objective is to never be surprised about anything ever.
Ride or die loyal to his people, but his people is NOT a long list. And you can get removed from the list (see also, Fundy). He might become friendly to people he's lost faith in in the future, but it's always at a cautious arm's length. If you've done something to make him lose his faith once, he is always expecting that from you again (part of knowing where his exits are). If, however, he trusts you, (technoblade) he will obviously follow you into hell. Not even a question.
Chaotic, if he's not having to constantly keep an eye on a teenager. A soon as he is off the leash he's off killing animals that chat wants him to adopt or burning villages. You see this more in his time with Techno because Techno, rare among the people on the server, didn't require anything from him other than friendship. So of course Phil threw in with him with everything he had.
Swears. He swears a fuckton. Kinda guy to be in a call with someone family friendly, say damn, and then say fuck, sorry I forgot about that shit.
Okay so you don't have to do this part but *I* am in philza minecraft streams weekly still (I like routine) and the CC is now saying yeah probably I'm autistic and has referenced probably having anxiety and adhd in the past as well. He's not officially diagnosed or doing anything other than making jokes about it and he certainly wasn't doing that during DSMP but for those among us who are 30 year old late diagnosed autistics the signs were always there okay. You don't have that much routine and that much digging gravel without some mental quirks.
He will self-identify as not a good student to the point of considering himself stupid. While doing complicated redstone. In the real world this is because a bunch of teachers have literally called the cc stupid (shoutout to the teacher who called him a busy idiot which he has never forgotten, as one teacher to another I hope your coffee order is wrong forever) but like it is very easy to infer that he has not fit well into traditional schooling or ways of doing things in whatever backstory he has. He is very patient with other people (especially kids) being uh how shall we say. Non-neurotypical about it (he and tubbo were vibing a lot of the time) and would resist anyone calling themselves stupid and is openly positive about people's special interests and hyperfixations but oh HE is stupid if you ask him. He also considers himself not good at the game because he's comparing himself to hermits building and technoblade pvp and couriaway speedrunning. He thinks he's okay at stuff like good enough to stay alive mostly just cause he takes things slow. This is also why "phil can't read" jokes kind of suck, because he visibly has had teachers who accuse him of that.
Working class way of approaching interpersonal relations. I can't really sum this one up but like. Yeah. He acts like the guy you're doing shift work with. POSSIBLY the IT guy if you work in an office. Fairly relatable way of processing grief through humour, relation to peers, emotional repression, and understanding of family, if you are also from that kind of background.
Doesn't particularly think of himself as a good person, but he doesn't particularly think of himself as a bad person, either. He doesn't do that kind of moral weighing up. He's just a guy who did some things that needed to be done, and now they're done, and now he's living his life as best as he can. That's the past, he doesn't live there. He doesn't spend a lot of time on moral spirals he just weighs it up, makes the practical decision based on the safest path and his morals and loyalties, and then does it. This can bring him into MASSIVE conflict with people who think of him as having committed crimes and are like well L'MANBERG and he's like yeah that needed to go what of it. This is also in contrast to Techno who I believe absolutely can spend time spiralling about "am I a good person" or "was that the right thing" and then justifying it to himself. Phil doesn't spend time on that. Will kill without remorse, because why would he waste time on that.