Ok, given that I'm finally doing some kabooms, time to elaborate on some stuff.
So, basically, the Masters that Albertus created are the exact duplicates of the original Robot Masters of the Megaman universe, namely the original Dr. Wily Numbers. My DW2 Numbers will NOT be included in the Mana-verse.
So if a Master is defeated, the heroes can gain the Master Weapon, but as a magical spell. The spell will then conjure up the respective weapon. The spells are classified under the elements in general, and only the specific elemental user can use the spell properly.
So in this case... Napalm Master's Napalm Bomb will be classified as Fire. Don't worry, I'll inform you the element when a Master is defeated.