Additionally, players will have the option to group their Heroes together, under the leadership of a gen0 Hero. gen0 Heroes cannot die, but they'll receive no material rewards other than the achievement for survival, a full XP bar, and access to any quests that require that achievement. gen0 Heroes will add 3% to the survival chance of all Heroes in their group, and they may add up to 5 other Heroes into their group to provide that bonus to. Only one gen0 will be allowed per group. There is no benefit to grouping Heroes other than to receive this gen0 survival chance boost.