gabushatokisilver Double checked, the intended feature of summoning Blazes with a Fel Pumpkin (not using GoG) does not work. 2 Iron Bars, and then Fel Pumpkin is not working for build 453.
Wormbo Are you using the Diagonal Windows mod? It replaces the iron bars block with something else that will not be recognized by Botania (or anything else that looks for vanilla iron bars).