All that crimping and whitening
From my own experience, when I was living in London Spanish, Italian and French cards were valued slightly lower than their English counterparts, both on player-to-player trading and on magiccardmarket.eu, and for both non-foils and foils including eternal staples like Thoughtseize
What players are articulating is a complaint that art like the Foglios' no longer exists
Collection buyouts and bulk purchases, which scale fastest but demand the most due diligence
Legion's Initiative This is my sleeper pick for the set even though a ten dollar sleeper is a stretch
However, while Magus Lucea Kane can be explosive by doubling your Ravenous creatures, The Swarmlord synergizes more with the +1/+1 counters theme and will help recover from boardwipes with extra cards