The walls of the dungeon town were already big enough. They were also quite large enough, so they only needed an extra touch of nastiness for them to become quite troublesome to climb. The final touch given by Billy were some spikes that he made emerge from the walls. He focused on detail and sharpness, so even the minor touches could cut the flesh of the enemies. Naturally, he made those spikes out of iron.
With his current mana, he managed to cover around one-fourth of the walls with those spikes since he only had to put them on the upper half of the walls. Once that was done, he went to the dungeon to kill some monsters and get mana by using Spiritual Core.
Savage Belius - Lv 71
HP: 975/ 975
MP: 333/ 333
SP: 654/ 654
Strength: 124
Speed: 85
Magic: 45
Endurance: 131
Dexterity: 40
Status Points: 00
Skills: Steel Claws Lv 22, Hard Skin Lv 33
Spells: Roar Lv 39, Earth Bullet Lv 35