What actually is "codex tech". I've had several runs where I fat finger the "c" button after pause buffering while trying to get back to the "d" button to get out of a room. I'm obviously going to rebind the codex to the other side of the keyboard but I'm unsure as to what it actually is.

I've made a single change to my game files. It changes the requirement of the centaur auto-equip to add a 6 cost card requirement, essentially disabling it.

Is this allowed or will it prevent my runs from being valid.