Bundles contain a little bit of everything to build and refine players' favorite decks, plus an oversized Spindown life counter themed after the set
Most will have some to block, just like your flying, but few will be able to always block
With Nocturnal Hunger, for example, you can kill an opposing thing no matter what, but if the two life really matters (because, say, you're at 5 life) you can give the Food token and not lose the life
There are no crazy reprints like Dockside Extortionist or Mana Drain here, so youd only be buying these to pick up new singles included in the list
In Limited (Draft & Sealed), where you build from random packs, rarity is a rough proxy for power