I think, in my humble opinion, that contingency plan is the greatest feature I have ever seen in DnD. The idea of a narrative ability like that seems like it would make the entire party go absolutely wild in excitement at its reveal. I once had the idea that Fighters could have an ability similar to it. Where a heroic success is accomplished that goes beyond the bounds of what a fighter with its toolkits are normally capable of. An ability that literally has the narrative influence to make the DM go "Alright let me explain how crazy the shit this guy is about to do is."

I really have been really getting into your homebrew recently! It's all very exceptional! Did you ever get to see my response on your previous post where we discussed the arcane knight and its War Magic feature?