Yes! For a character as slow as a molass, Iku definitely needs the "Lightning Fish" skill. With that skill, she might fast enough to actually make her "Mind-ignoring attacker" built actually worthwhile.
Iku's mnd-ignoring offense build is pretty legit already, the main issue is just how many bosses resist MYS; but around then, you should easily have Hina or anyone else online to debuff MND and use Heavenly Maiden's Blow with her spells instead. Her normal attack is better when you can though (maybe with a skill now and then to drop the enemy's DEF for the party) since it's got that sweet low delay and nonexistent cast cost. Keep in mind if you use Tenshi with her, Iku becomes super durable with +40% def/mnd. But yeah, she's also godly on random fights; she one-shots almost all enemies that don't resist MYS with her normal (especially those pesky tanky ones!) and can use spells on the rest.
But yeah, Alice is ridiculous. It's just too bad it almost necessitates bringing Marisa too, who I'm far less interested in; Malice Cannon is ultra easy to activate and insanely good for Alice, free +30% base magic yes please?!
In other news I'm almost done reformatting damage formulas and adding library costs on Char.Page 3 of the wiki (edit, done now~), and I went back to improve the line breaks and round decimals on page 1+2 already. I'm sorta debating changing "Post-use Gauge" to "Delay" since it frees up a huge amount of space and makes it display properly with more consistency on lower resolutions, but whatever, I'll leave it for now. (It's slightly less clear that way but anyone who's played a couple floors into the game would understand, after all.) Besides, if I want to make it display better for smaller res, I should keep formatting with the current size restriction in mind.
edit:If I change the wiki format to shove the portrait with the base stats chart instead of out to the right, the wiki should look awesome at -any- resolution; however it's sort of a pain in the ass to do this for that many characters. But it would look like this (at ~1,200 screen width, which next to no one would use less than these days; I think a larger 1280 is the smallest normal?)
http://puu.sh/mBE4F.png You have to add the fourth Portrait column and change all column size parameters to 4 instead of 3, and then add a little section in the code to shove the portrait into. Which is fairly simple, but doing it 48 times, jeez, there's no fast way to complete these steps. Likely not going to be able to bother.