IIRC The class packs (like those awarded via the book of heroes) contain only class cards from various expansions. If that’s correct I’m curious how legendaries received via class packs impacts the pity timer. Does it count as a legendary opening for the specific expansion that card belongs to or does it not count against the timer at all?
I’m not sure anyone has an answer to this (as the pity timer supposedly doesn’t exist) but I thought I’d see if anyone has any ideas.