Army of the Shugo

I've started to play around with decks that specifically target Eternal Achievements. I came looking for an Oni deck here, to complete the "Army of the Shugo" achievement: "Have four Oni wielding weapons". This is the list I ended up building to do the job. In the end, it wasn't difficult to do, just a couple of runs on Casual, and I found an opponent that didn't tear me to shreds immediately, so I could get the combo going.

In order to get a field of Oni rapidly deployed, I've selected some of the cheapest Oni available. They don't need to be killer units, in fact, I think if you pick ones that don't look too threatening, there's a greater chance your opponent will leave them alone longer, so you can get 4 in play. I'd suggest being unusually passive when you play this deck, at least until you have 4 armed Oni.

The most costly items are the Steelfang Glaive and the Ossuar Longbow. These cards make it easier to arm our Oni, in different ways. The Steelfang Glaive lets us arm them two at a time. You'll need to have two available though to complete the challenge. Alternatively, you can use the Bladetooth to simultaneously arm everyone, but first you need to put some cards into the opponent's void. Use Ossuar Longbow to help kill some units, along with its Hunt ability, to allow the Bladetooth's Devour ability to activate. The Oni Quartermaster does a nice job of re-filling your hand too if you happen to have it in play before the Bladetooth.