Like its properly divine friend Righteous Valkyrie, Bishop of Wings is an incredible enabler for cards like Angelic Accord, Speaker of the Heavens and Resplendent Angel
If you return no creature cards to the battlefield, you won't put any counters on any creatures
Having Hyenas or Robin Hood out can be the game-winner
By the way, I don't know if you noticed, but the modern Oracle wordings for the ten dual lands has what they tap for in reminder text, so they are, technically, according to the same wording as Urborg, Tomb of Yawgmoth, now fully colorless
I have mixed feelings about Mob Rule since on one hand, it looks insane, but on the onother, in a heavy morph/manifest format, it's going to be hard to make a huge momentum swing since the opponent will probably have a mix of creatures over and under 3 power
Three damage to any target for one mana is too good of a deal to ignore, and most decks that can run this effect will run some number of them