There were just enough pixels in the first panel that I was able to find the video. I haven’t watched it myself.
Ah, thanks.
For anyone coming later, the first half of the video is superfluous to the meme, start at 3:18. I agree with the video’s interpretation of the first ruling, that that would be a reasonable use of a ready action.
Otherwise, yeah, the meme is spot on.
As I said elsewhere, casting a spell and holding it uses visible components the hobgoblin could react to.
That isn’t how I interpret the ready action. And yeah, there should be a save of some sort even if it isn’t RAW, but I think I’d allow it out at my table, it’s creative and fun.
Edit: I reread the rule, there is language for precasting the spell. I stil thinkl it’d be more fun to find a way to hide it, like a stealth check or similar.
Either way, the fact that casting a spell is an action isn’t really a problem here