I agree the Leeroy+Faceless combo is overrated, especially in an aggro meta. But Leeroy+PO (one or two) gives so much reach by itself that I think you'd be missing out by not running Leeroy when you already have the 2xPO in the deck. Arcane is probably a decent replacement here because a lot of times you'll just want a decent charge to add 8 PO damage to.
Also I think the Dwarf could easily be replaced by a Senjin for even more anti-aggro tech.
Also I think the Dwarf could easily be replaced by a Senjin for even more anti-aggro tech.