The fuck were they thinking, building card disadvantage into a Planeswalker answer? I know that’s just what Masticores do, but this has to be a nonstarter.
. . . I’ll still get a playset for my Eldrazi collection.
It's only a disadvantage if you don't utilize it. Shops does not have any card they really want to discard, but Hollowvine does. There are some places where this discard is an absolute advantage.