Now just hold on, I see several rather glaring issues with your proposition: 
  
1) You failed to include Thumper or Flower. 8( 
  
2) A more general Keyblade would be ideal, since the taxidermy deer head would be more offensively useful if it had antlers (doubles physical attack power, y/n?), and Bambi's mom is a female and obviously lacks them. Maybe a male deer head wit the Keyblade name "prince of the forest." 
  
3) I think Xehanort's smart enough to just let Xigbar do the shooting from the get-go, tbh. The old man can barely stand up straight to aim right. 
  
Other than that, sounds legit, good sir.