Goblin Plate Mail

Legal in Standard, Pioneer, Modern, Legacy, Vintage, Commander, Pauper

When this Equipment enters, amass Goblins 1, then attach this Equipment to the amassed Army. (To amass Goblins 1, put a +1/+1 counter on an Army you control. It's also a Goblin. If you don't control an Army, create a 0/0 black Goblin Army creature token first.)
Equipped creature gets +1/+0 and has menace.
Equip {4}