What did surprise me though is how nice the Graveyard subtheme ended up being: I count 20 cards that interact with the graveyard directly with a very generous definition, including anything that recurs (Starfield of Nyx), puts itself in the graveyard (Binding the Old Gods), puts other enchantments in the graveyard (Nyxborn Behemoth), or triggers off enchantments going into graveyards (Narci, Fable Singer)
If you draw more Smugglers Copters than you can Crew, you can loot them away into real cards
As you might expect, this makes them a hugely oppressive threat so long as they can keep attacking
So if you've got cards that care about "attacking creatures" like Goblin Oriflamme or Trumpet Blast, they certainly do be attacking
Sorry, I think I got a bit caught up in Gruul-think
, Discard Herd Migration: Search your library for a basic land card, reveal it, put it into your hand, then shuffle