If not for the fact that Gotoh can use it to OHKO bosses at least all the way up to chapter 16 on hard-3 with it plus near-base magic, I would say leave it for sure, but at this point it can trivialize most bosses since they're usually either armored or mounted. Anyways, I noticed that this patch seems to boost Julian's stats through the roof, his bases were enough to take on promoted units with relative ease, despite being lower level than his normal self. Not sure if this warrants a change, since it is rather funny, but it's definitely something to note for if you set up the draft you mentioned previously.