what are some cool things that all doom players could do? like general abilities

Anxiety.

Okay, in all seriousness, Doom is a pretty vague Aspect when it comes to general powers, but anticipating bad things to come does seem to sort of happen even for Non-Seers- Like how Mituna knew something bad was going to happen. Maybe a sort of Spidey Sense? I’ve also argued about the connection between Doom and Fire, so maybe Pyrokinesis could be common?