The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at You Know, That Thing Where.
The first one sounds like a variant of Gaslighting.
Currently Working On: Incorruptible Pure Pureness
Well yeah, but I am looking for something with a philosophical edge to it. Someone who doesn't merely seek to deceive their victim, but claims that their deceptions allow them to alter reality.
Apathy is Death. Worse than Death, because at least a rotting corpse feeds beasts and insects.
Sounds like Master of Illusion
We can never truly eradicate the coronavirus, but we can suppress its threat like influenza
The first one sounds like a more aggressive version of I Reject Your Reality.
(Also, you're talking about the Party's philosophy from 1984, right?)
A character that can control Your Mind Makes It Real?
^^ I am talking about Epistemological Nihilism applied in a story, but yes, Party would be an example.
It seems to be this annoying area where there is no trope that truly fits what I mean, but there are too many similar tropes to justify me launching a new one.
Apathy is Death. Worse than Death, because at least a rotting corpse feeds beasts and insects.
Sounds like Mind Screw
We can never truly eradicate the coronavirus, but we can suppress its threat like influenza
Is there a trope for a character claims to control reality by controlling people's perception of it? Or just questions the existence of objective reality in general?