apesamongus
First Post
Under the section on Sudden Metamagic Feats in CA, it says that the Sudden Feats can be used with spell-like abilities BECAUSE (important) they do not require modified spell slots. That would imply that any metamagic feat not requiring modified spell slots could be used with SLAs. So, is there any reason that a Warlock couldn't take Energy Substitution (or born of the three thunders, for that matter) and apply it to EB invocations?