Look, my main excuse is I know a lot of systems, okay, I’ve seen things done many different ways. And, for some reason, I had a ruling in my head wrong. It happens, even to me. I’m sure nothing else in my head is wrong and that was the only bit.
And of course, as I write that, I know that it’s a lie. Of COURSE there are things I have wrong. But I can’t focus on that. I can’t look up every single rule, every time. I don’t have time for that. I need to have confidence in my running of the game. If I show weakness, well, they won’t tear me apart, per se, but anything I try to do that they don’t like, they’ll question.
So I have to be firm. Steadfast. Resolute. Unchanging. Unless there is evidence. In which case, change only as much as you need to. I am the world and telling the world it is wrong changes nothing. As thousands of people know.
Anyway, turns out you can’t cast at all in armour. I thought it was just disadvantage. Must have been a Playtest rule that had lodged in my brain. Oh well.