User blog comment:Centuriarch/Raiden, the Ace of Shades/@comment-7709681-20140915025056

All of his abilities are gap-closer with the exception of his passive, and three of his four active abilities apply on-hit effects; additionally, is really redundant that E already silences its target, yet it interrupts channeled abilities, despite Silence already does so.

And his passive effectively means he has no critical hits, he just increases his damage on-hit.