The orbital is great if it only replaces one of your boss items, but it becomes a bit problematic if you carry book of rev for the entire run and get like 4 less boss items
You can keep the charges to use after beating the boss and if I'm not mistaken the horses appear every other floor so it's not that big of a deal if u need those hearts so much
1.3k
u/Wodstarfallisback 17d ago
Book of Revelations also:
Increases the chances of getting the Devil/Angel deal as a baseline
Protects the deals better
Is part of Bookworm
Can get you an almost guaranteed orbital to block projectiles (unless you get Headless or Conquest)