Just played a game where I was Ivern and my team had a Blitz. Every time the Blitz would grab a camp i was marking with my passive I'd get the gold for the grabbed creep, up to 100 gold for buff monsters. Completing the camp gave me gold as normal doubling gold of big monsters.
Just to be clear, the action of Blitzcrank pulling a marked jungle monster gave you gold? And this is without him killing it in the process?
I know this was forever ago but I never check the forums. Yes, I got free gold from Blitz pulling it, not killing it/targons. Clearing it as usual afterwards gave the full gold reward. Havent played much Ivern since, so can't confirm if its still the case.
