I think prices will rise for some cards, but obviously not all cards, which is what some people dont get, Caitlin Sidhu explained
If you have any doubt about this, please refer to Dockside Extortionist
I covered the whole process in my article about how important math is to doing the thing in Commander, if you want to read more on that
Prison commanders accomplish this either by increasing your opponent's spell casting cost or taxing them for playing some sort of ability or interacting in certain ways
(If the toss involved multiple coin flips, redo all of them.) You can only use the effect of "Second Coin Toss" once per turn
Considering this deck is extremely dependent on our creatures being present on the battlefield, every protection to keep our board is welcome