After consuming the blood essence, Kang's normal attacks and basic techniques became less effective against the Frost Monarch.
Soon enough, Kang allowed him to use his acid weapon since he intended to go a little further by using his abilities. Over time, the man's adaptation to his new physical strength improved at an alarming pace, allowing Kang to finish earlier.
Through Kang's inspection, he understood that the Frost Monarch was built more toward speed and agility, making his form a pair of daggers. Not only were they better compared to the sword, but they also helped and improved the man's overall balance.
Soon, Solomon's turn came on again, and unlike the Frost Monarch, this one's adaption was quite slower, making his training a bit longer.
In the end, Kang failed to figure out what weapon would suit him the best. So he created a variety of one and two-handed weapons before allowing him to test them until both were able to figure it out together.