Thunder the human pokemon

Prolog

I saw a rift open up. I hesitantly stepped towards it.
"Go in Thunder." The ghost Gardevoir/my protecter says.
"I don't know if I can..." I said holding my blond hair.
"You can. Trust me Thunder." The Gardevoir says again.
"Pika?" My pikachu asked.
"It's ok..." I said to him.
I sighed then I jumped threw the rift. The rift closed behind me.
I felt strange. I looked at my hands, which were turning yellow, I felt like I was going to scream. Electricity crackled threw my cheeks. I felt myself shrinking to the size of a pikachu. I felt my hair disappear. I closed my eyes as the past slipped from my mind.
I felt grass.
"..." "...." "Are you ok?" A voice asked. I opened my eyes to a chikorita.
"Im Leafstorm. What's yours?" She asked.
"Im human..." I said.
"But you look like a pikachu from every angle." Leafstorm said.
It's true I've been turned into a pikachu.
"Your name what is your name?" Leafstorm asked.
"My name is.... Thunder." I said.
"Well..." Leafstorm said. "THATS A FUNNY NAME!" She said dropping down laughing. I began to laugh too.
"It is..." I said then I accidentally shot a thunder bolt at a tree.
"HELP!" Someone called.
"Let's go." Leafstorm said.
We ran to a butterfree who was being attacked by Pokemon. I used thunder bolt making all of the Pokemon faint.
I was no longer a human for why ever I'm here...

But a Pokemon or a Pikachu to be more detailed.