Solomon loved the sword Connor had made for him, and it was Ian himself who had impregnated its blade with black particles, so this sword was not only powerful, it was also very sentimental to him.
But then Elias said to him: "Take it as a backup sword, the one Connor made for you is just a little inferior in terms of power to this one, so you can keep it as your permanent weapon, but believe me, take advantage of the purple dungeons to train yourself to use two swords while fighting, you'll need them in the next big battles."
Solomon finally accepted the sword Elias handed him and Axel then handed Willow to Elias and he asked Solomon to lend him the sword Connor had forged for him.