The next set of DMF cards will be strong.

I was looking at all of the corrupt cards because i was considering making a Y'Shaarj, the Defiler gonk druid deck, mostly as a meme because it would give you Moontouched Amulet but when i looked at all the corrupt cards(for all classes not just druid) i realized that there weren't a whole lot of them. And what was there wasn't super powerful either. And that's got my noggin joggin. They already said they would release more cards with their DMF "mini expansions" and i think that will include better corrupt cards. because other than memeing with Tickatus why would you play Y'Shaarj, the Defiler right now? Fleethoof Pearltusk isn't worth it on it's own. And mechanics like corrupt only stay for one expansion. i am envisioning some pretty good corrupt cards will NEED to come out or this legendary is bricked. and i don't think they'll brick an old god that easily.

I watched Kibler's theorycraft stream, mostly to get the free packs, but also because he tends to test as much as he can. And I got to say, Y'Shaarj, the Defiler would probably be the most consistently strong at what he does compared with, say, Cthun or Yogg.

Priest in particular is insane with Yshaarj, and I wouldn't be too surprised if shaman would be as well.

Yogg is just removal, Cthun is too slow but it might lack refinement, I missed out on his Nzoth games and didn't see a single guy play nzoth against him. While I rarely see Yshaarj myself, the corrupt cards frequently look very good (Strongman and Fleethoof Pearltusk are particularly good neutrals), enough to convince me that the first deck I would play would probably be Yshaarj priest.

If you can fill the board, in most cases, I would say that's more or less the powerlevel the devs probably intended with Yshaarj. Don't think the mid expansions would explode in power, though with better corrupt cards its inevitable that he'll get better.