New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
If the new fourth seal/death enters battle and then you play death of unrighteous on him to shuffle The Lost Souls and discard him does his ability still reduce your opponent's hand size at the end of their turn?
My understanding would be that it does not trigger because, while it activated in the battle phase, it is no longer in play during your opponent's discard phase and, therefore, doesn't activate.