I figured I'd slap this here (I know you wanted it in the IC, but I feel like that's more appropriate for when we're actually in battle with the bosses.)

She can be expanded upon as the community sees fit. 

[hider=Kaelestra the Abyssal Maelstrom]

[h3]Name[/h3]
[indent][h2][color=#007777][b]Kaelestra the Abyssal Maelstrom[/b][/color][/h2][/indent]
[h3]Appearance[/h3]
[hider=Metamorphosis State]
[img]http://i.imgur.com/cSsSqh0.jpg[/img]
In this state Kaelestra is forty feet tall, with tentacles growing from her back that reach up to sixty feet in length and five feet around. She wields a javelin that appears to be made out of the bones and teeth of monsters from the sea.
[/hider]
[hider=God State]
[img]http://i.imgur.com/LXtn3j8.jpg[/img]
Kaelestra is a hulking mass in this form. Losing all visages of humanity she may have once possessed, she is a monster beckoned from the depths of the ocean. Defeating her in this state is nigh impossible unless you're packing some serious weaponry or magic.
[/hider]
[h3]Power Lvl[/h3]
[indent]Legendary approaching God-like. Kaelestra is still in her metamorphosis state, yet should she complete this transformation she will be a god by all rights. (In comparison to the Gate Guardian, she is power level 4000. After achieving god status, she will be power level 10,000)[/indent]
[h3]Strengths[/h3]
[indent]With the fury and vengeance of the sea, Kaelestra is adept at summoning forth tidal waves and hoards of abyssal creatures from her surroundings. Her many tentacles can lash out quickly, and are highly mobile. If they grip a person, they inflict tremendous amounts of mental anguish until the victim can be broken free. If not broken free before a certain amount of torment is inflicted on them, the victim may become insane or suffer long term effects. If these tentacles are cut, she can regenerate and duplicate them after a short wait, akin to a hydra's heads. Beneath her is a swirling vortex of water and darkness that may catch her foes unawares if they do not tread warily into her territory.[/indent]
[h3]Weaknesses[/h3]
[indent]She is immobile in her metamorphosis, therefore limiting her ability to dodge attacks. Additionally, if her tentacles are somehow held down, she cannot defend herself other than wielding her javelin. The hoards of monsters she summons from the deep are somewhat easily dealt with if paid attention to, and drop spines that can be used against her tentacles.[/indent]
[h3]Setting[/h3]
[indent]Kaelestra has begun her ascendance into God-hood in the middle of an ancient temple ruin that is flooded with water, leaving only pillars and the above floors of the ruin as dry land. She sits in front of a massive chunk of missing wall, which leaves her back open to the ocean and setting sun behind her. On her right and left are massive dilapidated stair cases, slick with slime. The upper floor has massive pillars, atleast ten feet around, that act as a railing and cover. Some of these are dilapidated and broken, though most remain intact as they support the floor above them, and so on. The stairs to reach the floors above this floor are broken. 

In the water below, the pillars are at, or a bit above or below water-level, and there are also sections of wall that stand erect for some cover. If one were to look in the water below, it is atleast ten feet to the bottom, and all of it seems to be caught in the current that is swirling around Kaelestra, making it a very inhospitable environment. The ceiling above has a mural of a leviathan ravaging an entire ocean-side kingdom.[/indent]

[h3]Boss Phases[/h3]
[indent]She will go through boss phases, using one set of attacks to another that may be devastating if not reacted to appropriately. If wanted or required, I can list these events and how they may look when she activates them.[/indent]

[h3]The Goal[/h3]
[indent]Defeat Kaelestra before she can ascend to God-hood. This will happen roughly twenty-five to thirty boss posts after the start (basically when the sun is finished setting). If she ascends to God-hood, she can still be defeated, but will have become another boss entirely.[/indent]
[/hider]

Also, just a suggestion (can be edited):

[h3]Power Levels[/h3]
[i]Highest to lowest[/i]
[b]11,000 - 15,000 - Supreme High God.[/b] Basically impossible. Exercise in futility to try. Only attempt if you feel like dying a brutal death. (ex. Odin, C'thulu. In Yu Gi Oh sense, maybe Exodia?)

[b]7,100 - 10,000 - God-like.[/b] Very hard to kill. Would take armies to defeat these impressive foes, yet some stalwart heroes with a good plan of action may be able to. (ex. Loki, Thor. Gate Guardian? XD)

[b]4,000 - 7,000 - Legendary.[/b] Not impossible to take down, but definitely deadly. Not for the weak of heart. (Hard to give an example here. Most Adult Dragons in DnD would fall here. Sephiroth, perhaps?) 

[b]1,000 - 3,900 - Heroic.[/b] Basically your run of the mill boss. Strong, but if you're prepared you can take this foe down. Their strength may lay in their minions or their gimmicky strongholds having traps, etc. (most Liches with a Reliquary could fall here, unless they're insanely strong)

[b]500 - 900 - Adventurer.[/b] Owlbears, young dragons, bandits, oh my! If you have your wits about you, this is a somewhat challenging fight but entirely winnable.

[b]100 - 400 - Novice.[/b] Goblins, wolves, etc. Easy, fodder unless they're in numbers.

[b]1 - 90 - Child.[/b] Any children, or babies of anything, would fall here.