Ash and Co. lost on and Island!

[Palamon]

A fun thread for a silly question. Ash and his friends are lost on an island! Most of their Pokemon were washed ashore to another part of the island...except one for each of them. Pick a single Pokemon EACH from their parties you feel would be the most useful for the four (or three, depending on what group you pick) of them that would be the most useful for Ash and co on a deserted island and why you picked this Pokemon.

 

[imtnt]

Charizard - flying with it to collect all the other friends
No need for more realy