Pair it up with Rogue's Passage or Whispersilk Cloak to effortlessly leave your opponents at deaths doors one by one
Ward 4 is an absurd level of protection - players wishing to target Kappa Cannoneer with removal spells will need to pay five mana at a minimum to do so without it being countered, and that's assuming the removal spell only costs one mana
There isn't a deck in Standard that wants this right now, and I can't imagine a pile of new Standard cards suddenly coming together to make a deck
If Wizards of the Coast is targeting spells that push homogenous deck building and threaten to push other archetypes out with powerful consistency, cards like Once Upon a Time must go
You can find a graphic revealing the contents of a Beyond Booster above
With enablers like Kenrith, the Returned King or Esika, God of the Tree, you can create a constant flow of legendary value