In my ever so honest opinion this would fit the best:

Jiraiya (児雷也 - literally "Young Thunder"), the title character of the Japanese folktale Jiraiya Gōketsu Monogatari (児雷也豪傑物語, "The Tale of the Gallant Jiraiya"), is a ninja who uses shapeshifting magic to morph into a gigantic toad.
That's right. A GIGANTIC TOAD THUNDER PRIMAL.

Where is your God now?

Ah, but alas. No finel ftnsy feelingz if its not ramuh.