Starmie WWS

asked for the Star of the Ocean, Starmie.  Starmie is usually depicted with a red core, but I wanted to see what the multicolored core the Pokédex says it has looked like.

First commentor other than  can pick the next Pokémon from the following list:
Kakuna Poliwhirl Machoke Victreebel Tentacool Magnemite Grimer Voltorb Electrode Exeggcute Weezing Staryu