When Norin, Jr blocks, is blocked, or becomes the target of a spell or ability, exile it, then return it to the battlefield tapped.
"My old man had the right idea about being cautious, but he didn't take it far enough. You gotta be careful of EVERYTHING – even caution"
See Challenge # 147.
I really like the idea of a slightly-more-nuanced son-of-Norin.
How is Norin a warrior, not a rogue? And how is he not a coward? Cowards need more awesome creatures! :)