Shield of War and Peace (a reprint of Sword of War and Peace) deals extra damage when hitting a player directly and also grants its user protection from red and white
Unfortunately, mana is quite a lot to pay for a single 1/1 flier, so Pride of the Clouds still needs some build-around support to be effective
Leyline of Sanctity is a big problem but it is very rare to see at the moment , that being said, I like to have at least 1 card in my deck which can deal with it and Wear/Tear might do the job in addition to the answering Batterskull
And, thanks to some combination of the unusual theme, the new MTG color combination for it, and the importance of the character to Fallout: New Vegas, he's absurdly popular
That could be a Boros Charm or Teferi's Protection to save your board, or a simple Swords to Plowshares to get a problem out of the way
From stupid combos where you keep bringing back a busted artifact that's meant to exile itself, to landfall triggers galore, there are no wrong answers here