Is there any limit to how much a Warshaper (Complete Warrior) can grow their limbs using their Morphic Weapons ability? As far as the rules say, it is possible for a Tiny creature to then grow to Colossal weapons with enough move actions.
[RPG] Are there limits to size for a Warshaper’s Morphic Weapons feature
Stun, Daze and similar stuff don't impede your movement...
...they make your mind funny.
While you are stunned, there's nothing holding your body to move. You just can't think right to actually do something. If you take a really hard blow to your head, that won't make your body harder to move - it will make your brain go gonzo for a few secs, before you became aware of what's really happening.
Stun is not about movement, is about senses of what's going on.
Freedom of Movement makes "your body work right", not anything else. It allows you to move, but not allows you to think. You can't think if you're dead. Or Stunned.
Paralysis don't block purely mental actions, so it don't block "thinking". Slow makes your body... well, slower, but it doesn't affect your thinking. Web is... well, a web. It hinders your body, not your mind.
Stun, Daze, Dazzle and similar stuff, on the other hand, makes your senses go wacko, so they aren't really blocking your movement. Stun never stopped you from moving, it just stopped you from thinking for a while - and since you don't think, you don't act.
So, the point is,
If something affect your senses, Freedom of Movement can't help you.
Think like a "Houdini Effect". Houdini can escape from almost anything, considering that he knows what's going on. If you throw him with a concussion inside a closed coffin... well... he will stay there.
So, to determine what Freedom of Movement removes or not, use a simple rule:
Why I can't move?
If you can't move because a spell or something is hindering your body to move, like Web, Freedom of Movement can help you.
If you can't move because a spell or something is making your brain go gonzo, like Stun, or because your body becomes something that can't normally move, like stone from Flesh to Stone*, it won't help you.
*Flesh to Stone don't impede your movement, it merely limits you to the movement that a stone statue is allowed to do. A "Freedom of Movement"-ed and "Web"-ed person would become a completely untangled stone statue.
Also, read Freedom, the 9th level spell:
The subject is freed from spells and effects that restrict its movement, including binding, entangle, grappling, imprisonment, maze, paralysis, petrification, pinning, sleep, slow, stunning, temporal stasis, and web. To free a creature from imprisonment or maze, you must know its name and background, and you must cast this spell at the spot where it was entombed or banished into the maze.
Freedom removes a bunch of effects, like Flesh to Stone and Stun. It would seem rather... strange to say that a way lower-level spell can do almost all the things that a 9th level spell can. Freedom is Freedom, not Freedom of Movement.
For the bard interested in metamagic, metamagic song (races of stone) allows bardic music uses in lieu of higher spell levels. Also significant melodic casting, which allows casting while singing.
Looking at the bard's handbook, extend spell and captivating melody are good bets, as buffs and illusions are part of your stock in trade.
Unfortunately, that's about the extent of the things, and captivating melody is an even bet for someone going into sublime chord.
If you hadn't already started, I would have recommended bardic knack and jack of all trades into knowledge devotion, but that's a bit much to swallow mid-game.
Quoting the ability: (Emphasis mine)
I understand from the description that you can grow natural weapons according to the size of the shape you turn into, or if the shape you turned into already has natural weapons, you can enhance them to act as ONLY one size category larger. So I believe, that it's actually a matter of what kind of shape you chose to turn into, as the prestige class has a shapechanger type perequisite.