Whenever you cast a noncreature spell,
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.), where X is that spell's mana value.
Goblins and Orcs you control have
ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .).