Forms from Acheron (Planar Shepherd)

[ariasderros]

I will soon be playing a character who's class will be a Planar Shepherd typed to Acheron (campaign is not in Eberron).

I already have all of my plans set for when I hit L14 with my outsiders and all of that, and I know good animal setups, but I am at a loss as to how to best use the Magical Beast ability.

It has been established for this group that Acheron pulls its inhabitants only from: Mechanus; Baator (Nine Hells); Gehenna; and Gray Wastes (Hades).

So far, I know
Gray Wastes: Pack Fiend; Nightmare (what type is their flight?)
Acheron: Cronotyryn ( ); Fiendish Bonespear

So I would like some help with other forms, and help with the whole "template type change" thing.
In short, what are some good Magical Beasts (or creatures that can be template'ed to MB) that are from these planes (or can be template'ed to be from these planes)?

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(1) This character has no abuses beyond Planar Shepherd and Divine Minion (Sebek).
(2) The "Druid" part has ACF's from Cityscape and is a Druidic Avenger (I know this would invalidate Greensinger, which would invalidate PS, this was DM approved, as he believes that ACF's still qualify you for things that would require the original feature in most cases).
(3) This character will only receive very minimal assistance from spellcasting, as spell list will be truncated to spells that are apropos for the character.
(4) High optimization is okay, if it is too high op, I either wont use it often, or wont use it at all, so fire away.
(5) Melee SMASH! So Templates that help basic other forms be stronger / tougher are preferable, especially Dinos and Lizards and so on, what with Sebek and all.
(6) I will, at some point, use Eagle Wings [wild] feat while I am a shark, to chase around one of the other party members. Thus is the general tenor of the groups play-style.

Note: we now have, on the front page of the "Min/Max 3.x" board the words: Dweomerkeeper; Ruby Knight Vindicator; and now Planar Shepherd. Don't know what is causing for so much power to see so much play allova sudden, but I like it  .

[zook1shoe]

more shapes...
magical beasts- Mivilorn, Steelwing
outsiders- Achaierai, Barghest, Bladeling, Xong-Yong Energon, Hell Hound, Reth Dekala

[OblivionSmurf83]

How is Divine Minion interacting with PS? Does it add to your maximum wild shape HD?

[ariasderros]

How is Divine Minion interacting with PS? Does it add to your maximum wild shape HD?

It doesn't interact at all. Primarily, DM was to qualify for Primeval Wild Shape, Hawks Vision, and Fast Wild Shape, plus allowing me to fuel any / all Wild feats ad infinium. Also, for rapid healing out of battle.

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Some Wild feats state you must have the ability as a class ability, some do not, and in Complete Adventurer, you can find both terms. So having it as a racial ability would let you take the feats that do not ask for it as a class ability.
I normally do not agree with things like Divine Minion being treated as "unlimited" uses per day, or the Firre eladrin + Lyrical Spell infinite casting type stuff, because those abilities don't grant uses per day to spend (it's an independent system). DM rules interpretation.

more shapes...
magical beasts- Mivilorn, Steelwing
outsiders- Achaierai, Barghest, Bladeling, Xong-Yong Energon, Hell Hound, Reth Dekala

... Thank you. I don't know how I forgot that the Steelwings were from there, having harvested their feathers IC before. Thank you. Now I cant wait till I can use that. 

Also, a note about the template question:
In order to "work", a template would have to both: (A) be the template that changes type; and (B) have the creature be native to one of those planes after the template.
Really at a loss for what to do with that.