radiants are very valuable (700 energy for 50) but since you can't sell them you better use them on 5star gear because you can only get them in the last three depths.
i see. still though, the faust ate 60 goddamn crystals when i upgraded it with 100% chance (aka the only viable one). if i heat it again and it'll require more than that i'm gonna f
also i really like the mega magnus' charge attack. high damage + knockback + piercing shots = the bullet loving DRAGS enemies with it while stunning them and ripping monstrous chunks from their health bars, in the event that it somehow doesn't kill them outright.
fun
i don't like the stuff damage it has on robots and slimes though - gonna turn it into an iron slug to fix that.