So many of these topics, maybe we should make just one topic to discuss all the quick and obvious changes for the full efficiency list.
Anyways, this one's not hard to figure out. Nagi does 45/60 damage on Medeus, so I don't think you need Tiki for him, and outside of that she's no different from the other "Neutral/No Positive" characters.
At the very least, she shouldn't be above Nagi, who essentially does the same one thing that Tiki might be able to do that matters, but better.
Anyways, this one's not hard to figure out. Nagi does 45/60 damage on Medeus, so I don't think you need Tiki for him, and outside of that she's no different from the other "Neutral/No Positive" characters.
At the very least, she shouldn't be above Nagi, who essentially does the same one thing that Tiki might be able to do that matters, but better.