So my question is about his trait that gives him Blood token on card. Would Pulse Wave prevent him from getting the token?

When he takes damage, the trait is ignored. I believe cases like this have been ruled to not work in the past for that reason.

So, iIrc, Pulse Wave should prevent him from getting a blood token.

Correct, he's taking the damage while the trait is being ignored, so it doesn't trigger. No Blood token.

That's what I was thinking... thanks