User blog comment:Nhan-Fiction/(Custom, Fan-made Champ) Cerule, the Mystic Mermaid/@comment-4022742-20120930124452

Too Long; Don't Want To Take The Effort To Read (TL;DWtTtEtR)

AQUATIC ASSAULT
 * I advise you to reconsider the AP scaling on the innate

TIDAL WAVE
 * consider changing it to a line skill like Janna and Galio's I/O Rumble's ult mechanic

BUBBLE BARRIER
 * REMOVE the knockback, damage on breaking, tower shielding
 * LOWER the AP scaling to 50%
 * CHANGE the active ability to deal damage equal to shield strength (73 shield == 73 damage)

WHIRLPOOL
 * Make this your ULT and UP the AP scaling.

CASCADE CRUSH
 * REMOVE the stun and degrade it to your E ability

AQUATIC ASSAULT it's probably fine like this, I love the fact that it's the reverse of lux and leona... However keep in mind that between those two only lux can consume her own marks and both scale off level not AP, even though it's just 10 extra dmg per 100 AP... If you have 600 AP thats still 100 dmg per bubble... If it on top of that targets minions aswel... you can get 7 bubbles to burst with the dmg from the activating spell that'd be pretty OP burst...

TIDAL WAVE A Great signature ability, but since it's a lot like Janna's whirlwind and Galio's Gust I think it should originate from Cerule's position in a line. Aside from that I think It'd be neat if it did more damage at the narrow part and less in the wide part, but have the wide part increase the drag-back range.

BUBBLE BARRIER Is simply Over Powered when compared to other shield effects:
 * All shields cost at least 100 mana.
 * No shield has a CC effect.
 * Karma can shield with a 80%AP scaling bonus, but has to pop her ult to deal damage with it and can't shield towers
 * Jana can shield with a 90%AP scaling bonus, but only increases AD on the target and shielding towers is pretty much her unique ability
 * Lulu can shield with a 60%AP scaling bonus, but only lends pix to people and has to give up the shield in order to deal dmg
 * Lee Sin can shield with a 80%AP scaling bonus, but does not increase any stats in any way nor does it deal damage
 * Oriana can shield with a 40%AP scaling bonus, grants armor and mr but only deals damage to the enemies in a line from where the ball originated
 * Shen can shield with a 135%AP scaling bonus, but does not increase stats or deals damage
 * Sion can shield himself with a 90%AP scaling bonus, but can only activate it again after 4 seconds to deal damage and if the shield is destroyed it doesn't do damage at all.

WHIRLPOOL & CASCADE CRUSH I for one would swap these two from position and remove the stun from cascade crush. This will allow you to E -> Q combo for "Tons of damage" with a slight bit of displacement. While your ult will be more of a situational damage and slow tool for teamfights.