Quote from Rosy Dumplings »It depends.
1.I think we'll get Hero's Downfall or a similar variant (or maybe a Faith's Fetters reprint). Aether Snap is another possibility that would rock.
2. I think we will finally see the text "counter target creature or planeswalker spell" in blue. Seriously, that hasn't been done yet.
3. The most "exciting"/Flashy planeswalker hate I could imagine is a Humilty effect for planeswalkers.
Maybe something like
All planeswalkers are 1/1 creatures and lose all abilities (they don't lose loyalty counters while they're not planeswalkers).
humility didn’t think of that
I think it will be more closer to Overwhelming Splendor
But will turn walkers into creatures and it’s opponents only the reason is bolas probably has a loop hole so he will still have his powers when the sun is turn on