whenever shagrat, loot bearer attacks, attach up to one target equipment to it. then amass orcs x, where x is the number of equipment attached to shagrat. (control of the equipment doesn't change. to amass orcs x, put x+1/+1 counters on an army you control. it's also an orc. if you don't control an army, create a 0/0 black orc army creature token first.)