If I'm reading it correctly, it only uses Horde cards as ammunition (which does create a great mental picture), so Nature and Illusion wouldn't benefit from it much. But in a pure Horde deck, this could be a fun way to shake things up.
Alternately, a deck that has
Scepter of summoning and several Rare Horde with defensive Commons and Uncommons, though it's generally ill-advised to build a deck around a Rare, and you'd want to store up bricks to use this.