Ahh I missed that, thanks The Gray Ghost. I was going to include Shuffle to allow players to use triffids and shambling zombies but as I was trying to keep the Age of Heroes Extra booklet to 4 pages I dropped it for something else. But here ya go...
Shuffle Slow moving, this model can’t rush at their foe and so seeks strength in numbers; you either swop one Warrior for two Warriors or one Hero for a Hero and a Warrior, all of which then have Shuffle; models with Shuffle can’t Run; can’t be combined with Runt, Swarm or Big Guy.