Background:
Fire Beats Ice
Ice Beats wind
Wind beats Fire
Earth beats lightning
Lightning beats water
Water beats earth
Every MOB encompasses one element.
An earth MOB is weak to water (good luck on that one) but is strong against lightning
Furthermore... if, for example, Yarzon is an Ice MOB (Strong vs wind, Weak to fire) then all in the Yarzon family are ice. From yarzon feeder to Yarzon Burrower.
Point of contention 1
Are we not allowing for the possibility of a MOB being of 2 elements?
Perhaps a MOB that is both lightning AND fire... or an Earth/Ice enemy?
Also missing are undead versions of the MOBs we've come to love... Who doesn't want to see a Zombie cactuar?
Point of Contention 2
In the great pantheon of Final Fantasy MOB-hood (MOB-dom???) the elemental strengths and weaknesses have rarely been so uniform. Many MOBs have been weak to one element and strong against nothing. Others have been weak or strong to multiple elements. Also there have been varying degrees of weakness/strength.
Example: Grand Mantis in FFVIII was strong against Ice and Lightning, while water had absolutely no effect. All other elements did normal damage
There are so many possible elemental modifiers to consider: 200% damage (very weak), 150% damage (weak), normal damage, 50% damage (Strong), 0 damage (no effect), and levels of absorbed damage (heals the MOB).
Example: FFX Blue Element, weak to Lightning, absorbs water, Fire and Ice do half damage
Point of Contention 3
There is very little room for MOB diversity. You'll never see a fire Yarzon or a lightning mouse/marmot (Pika????)
Example: in FFXII, Cerberus was weak to water, Alpha wolf is weak to earth and Tartarus is weak to Holy yet all are in the same family
Point of Contention 4
Some MOBs just don't fit into the elemental world.
Example: in this game, Wight Warrior is a skeleton and yet, his element is ice. Interesting... The system should allow for non-elemental MOBs, as they are an integral part of final fantasy lore