Quote Originally Posted by NoctisUmbra View Post
The above CNJ spells are not exclusive. One has a DoT effect, and the other reduces magic evasion against earth magic. Both can be equipped and used as such by THM, and probably will be more potent as such.

The above two CNJ spells are the second tier combo spells in their respective elements.
The first one has an extra effect of dispelling an effect on the target. When used in a combo with CNJ Mag. 8 it has higher accuracy against the target of the spell. This does not mean it increases accuracy of all attacks on the target from other players.
The second one has an extra effect of inflicting Heavy on the targets it hits. When used in a combo following CNJ Mag. 10 it does increased damage on the target of the spell. This does not mean it inflicts a debuff on the target that increases the damage done to them.

Let's not confuse all combo bonuses as being debuffs.
For the Tier 1 Wind spell, I can see THMs having that on their bar for the DoT effect, but I can't see them using the Tier 1 Earth spell unless the Elemental advantage is quite significant; THM only has access to that specific earth spell, and they can't even combo with it. They would almost always make better use of their MP by doing combos with their own spells.

As for the combo effects... I believe you have the right of it. I was initially convinced when I read it, but after reading it again, and re-reading the ability lists for all classes, I have come to agree with your view of it. There is still a bit of uncertainty in my mind, as there are no other "Target AOE" spells with which to compare the wording of the combo effect, but it is most likely not a debuff. So... it looks like CON will still have a Dispel effect that it can land, but will otherwise be spamming cures and occasional stoneskins.