Im not really sure if this is even a bug, because Rain Of Embers states that it has to be cast with 3 or more energy to trigger the extra effect of applying weak and vulnerability.

Im more just disappointed that the interaction with Chemical X doesnt work.

So this might be intended or not, but i thought id report it anyway because it would be cool if Chemical X bonus casts would count towards the weak and vulnerability effect on Rain Of Embers.


Edit.: Actually i just checked the description of Rain Of Embers again, and it doesnt say it has to be 3 or more energy, but it states "if X is 3 or more".

This means logically it should take Chemical X into account, since Chem X just applies +2 to all X cost casts.