Hime, I understand that the numbers you get for every character in the game is much higher when you are level 1500+, and you spent trillions of skillpoints around. However, we're talking simple math here, assuming things are equal, characters who are better or worse in some categories will NEVER be better than another they weren't as good as in the first place just by "twinking", assuming you used/leveled the better character an equal amount. Spending 5 billion skillpoints in rumia's magic will make her do alot of damage and healing sure, but it will never ever ever be as much as kaggy's if you spent 5 billion skillpoints in kaggy's mag.
Here is why I said Kaggy's spells actually hurt in comparison to dark side of the moon:
Rumia: MAG 47 ⑨ C, Level-Up Difficulty 86 S
Kaggy: MAG 72 (14) S, Level-Up Difficulty 118 C
That alone shows you that despite the level up rate difference between the two, Kaggy's magic will stay higher than Rumias assuming other things are equal. Now let's look at their attack formula:
Rumia: (MAG x 2)
Kaggy: 2.5 x (MAG x 1.25)
The only other possible way rumia's damage using DSTM will outpace Kaggy's ignore mnd spells now is that her mag levels via skillpoints were significantly cheaper, which they are not, they are more expensive, approximately 10% more expensive.
Now I don't like arguing with people, or trying to prove someone is right just for the sake of it. But this is not the first, second, or even 3rd time I've seen you posh someone trying to offer advice with a snide remark like "Well *MY* ___ does better because *I* twink more, duh!". I mean, it doesn't help anybody to write something like that, not to mention it misleads someone into thinking that someone actually benefits from "Twinking" more than another, which in your case, is often the exact opposite.
You might as well tell people that Patchy does good melee damageusing the attack option because yours is level 9999, and skilllevel 9999 in attack, with 3 gurthang's equipped.
Now in the case of Rumia/Kaggy. I didn't realize that we were talking about a point in the game before Kaggy even becomes available, so the point is moot really, but chances are someone might be misled into thinking Rumia is the better character for mnd/def ignoring attacks, which simply is not true. Not only does Kaggy have 3, all of which have better formulas, but they all also have different elements, allowing you to exploit an elemental weakness or avoid a strength better.
Rumia's highlights over Kaggy is not dark side of the moon, or her magic. It's her excellent formula for moonlight ray, along with Demarcations heal and utility.