I'd say he picked Charmander, but that's just me. He seems like the passionate type.
This was pretty cool. The structure and word choice was pretty close to true Shakespearean work. I noticed one mistake:
Third of fire was Charmander. Passion,
Burned bright within, to ode I expect.
I'm thinking "burned" should be "burning." Or perhaps take out the comma after "passion." Right now it reads as though passion has been burned into the Charmander.
Anyway, I'm doing a sort of epic ballad about the pokémon universe, so it seems we have a common interest. Cool.