Changeling + wildshape

Eh, you're stretching to use Shapechanger while Wildshaped.

And the reasons why you can't have already been explained multiple times in this thread.

Im going to add a detail physically capable of doing so is in reference to requirements written in the rules of the ability not the surrounding lore of how you do the thing 

Outside of the mechanics that are written down the lore of how your character works is determined by the player 

Say your changling was once a human and was vain so a witch cursed there form to shift and they are searching for there face 

Now your shapechange ability uses a magical curse to shape change can a bear be cursed 

When it says physically capable of doing so it means physically capable of fufilling the requirements of the ability since the surrounding lore around a ability by design is completely up to the player 

So take dragons breath you need to exhale a torrent of energy thats written as a requirement so if you change into a creature without a mouth you cant fufill that requirement but bears dont have fire glands cool 

My dragon born. Is the skyrim kind and useses the  ancient language taught by a monastery to create flame from there mouth 

The mechanics of the game only interact with the mechanics of the game theres no other instance in the game where the mechanics are impacted by by lore because itsa roll playing game and the lore can litterly be anything 

For some more a wild shape cannot fufill the requirements of a tortal because one of the requirements is the tortal retracts into its shell thats written into the mechanics as a action you need to preform 

However if I wildshaped into a armadillo suddly I can use that ability because I can retract into a shell 

The requirements for a changeling is the changeling must have seen the creature before and it cannot add or subtract limbs and it has a limited size it can be 

If you fufill the requirements to use that ability thats the abilitys mechanics how those mechanics are achieved the game doesn't care about 

Addendum as shape change does work but 

You can make yourself appear as a member of another race, though none of your

You can only change to members of another race not species so you can change into different types of monkeys but not into a halfling 

Quote from The_dodgy_dm >>

Addendum as shape change does work but 

You can make yourself appear as a member of another race, though none of your

You can only change to members of another race not species so you can change into different types of monkeys but not into a halfling 

 Race was replaced with Species in the rules text in 5.5e. You can't differentiate them in a meaningful way.

Additionally, this thread was made under the 5e rules and only talks about the 5e Wild Shape. As a note, 5.5e Druid's Wild Shape doesn't retain species features. (I would know; I play a Plasmoid Moon Druid and it would be funny to be able to squeeze through 1-inch openings as a bear.)