The flying vehicles help with that, plus they provide artifacts for cards like Urza, Lord High Artificer
Sometimes it's as simple as "If I don't play Ishkanah right now to block, I'm going to lose." And if that one creature is just as valuable as three, I'm happy to Barter in Blood it awayespecially if they think I have Barter and are going to intentionally not play into it
Finally, you can pay six loyalty to exile all cards from all graveyards, then create a 1/1 Spirit with flying for each card you just exiled
Drag to reposition, scroll to zoom, and use the W/H fields if you want precise control
When Lashweed Lurker is cast, its controller may put target non-land permanent on top of its owner's library
Speculation about the new release more than doubled this cards price