Eventually, you reach a critical mass of shrines that give you a massive resource advantage to win, be it making everyone discard lots of cards with Honden of Night's Reach or milling opponents with Go-Shintai of Lost Wisdom
I'm not going to go through every single change to the B&R list in every single format
Four mana for a 5/5 flying is okay, but a bit slow, and crew 3 isn't great for a 5/5 just two power increase
It even has some solid midgame value on top of that
The decks are fun to play, have clear game plans, and illustrate the principles you can follow to create your own, original budget decks
The easiest way to make it work is to swing it at someone other than the life gain player and convince them to block it, allowing you to shoot the problem player and shut off life gain for good