Planer

I did have the idea of making the Planer a spectrepeople-only prestige class, probably something based on the bard, but more on dancing than singing. I tried to put this down, but the only things I could get down would have been horrendously overpowered. So, if someone else can think of a way of doing it, please do so, because I can't get my head around it. If not, I guess this should be deleted or something.

I hope I'm not breaking any rules by doing this, but I thought some explanation, and a request for someone else to do this might be better than just leaving a blank page.

Hit Dice: d6

Requirements:
To qualify to become a Planer, a character must fulfil all the following criteria.
Race: Spectrepeople
Alignment: Any non-lawful
Skills: Knowledge (arcana) 10 ranks, Knowledge (the planes) 10 ranks, Perform (dance) 10 ranks
Feats: Skill Focus [Perform (dance)]
Special: Bardic Music class ability

Class Skills: The planer's class skills and key ability for each skill are Bluff (Cha), Concentration (Con), Diplomacy (Cha), Knowledge (arcana)(Int), Knowledge (the planes)(Int), Perform (Cha), Sense Motive (Wis) and Tumble (Dex).
Skill points per level: 4 + Int modifier.

Class Abilities:
Weapon and Armor Proficiency: The Planer gains no proficiency in any armor or weapons.
Spells: At each even-numbered Planer level, the Planer gains spells per day and spells known as if he or she had gained a level in the bard class. The Planer's class levels stack with bard levels to determine bardic music abilities.
Bonus feats: At first level, the Planer gains Dodge as a bonus feat. At third level, the Planer gains Mobility as a bonus feat. At fifth level, the planer gains Combat Expertise as a bonus feat. The Planer does not need to meet any prerequisites for these feats.
Plane Dance: Beginning at first level, the Planer begins to develop a bond with the planes though the art of dance. At first level, the Planer chooses a plane from the following list: Fer'ard, Aq'rilom, Azr'tas, Korr'atran, Avalon, Nirvana, Valhalla, Purgatory, Vigrond, Abaddon, Duma, Malebolge, Shadow Plane, and Ethereal Plane. This grants the Planer special powers according to the nature of the plane. At every Planer level, the Planer may select another plane. At first level, the Planer can channel planar essences through dance. By making a Perform (dance) check, the Planer can deal extra damage of the appropriate type. The Planer makes a perform (dance) check as a full round action and must spend a move action each round on the dance to maintain it. The Planer's melee and ranged deals extra damage equal to the result of the Perform check divided by ten (rounded down). The damage is appropriate to the plane. For example, a Planer who has selected Avalon deals damage as if lawful and good. A Planer who selects the Ethereal Plane may strike ethereal creatures as if they were not ethereal and those who select the Shadow Plane may strike incorporeal creatures as if they were not incorporeal.
At seventh level, the Planer can perform a dance that exudes the nature of his or her chosen plane. The Planer may turn creatures as a cleric, but the turning check is the Planer's perform (dance) check + Planer level + Charisma modifier. This can be done a number of times per day equal to 3 + the Planer's Charisma modifier. The affected creatures must be opposed to one of the Planer's plane of choice. For example, a Planer who selects Fer'ard may turn water creatures. One who selects Nirvana may turn Neutral Evil creatures. Those who select the Ethereal Plane may turn ethereal creatures and those who select the Shadow Plane may turn incorporeal creatures.