Complex sentence: The Blue Talon aka Itto Yamura is a renowned martial artist from Japan of formidable skill and strength, the reason he was called'Blue Talon' was because of the cloak he wore with the blue dragon on his back that had talons.
Split into simpler sentences: The Blue Talon aka Itto Yamura is a renowned martial artist from Japan of formidable skill and strength. The reason he was called'Blue Talon' was because of the cloak he wore, with the blue dragon on its back, that had talons.