Combine it with other cards to give you benefits (or punish opponents) on card draws, and you may have a tasty combo going
Both cards being halflings means they are also solid ring bearers and can make good use of Bilbos Ring
Then, it has both trample and hexproof, ensuring that at least some damage is going to slip through your opponents defenses, and making it awfully difficult to remove outside of combat
Unlike their appearances in Kaladesh, however, the Aetherdrift Gearhulks are no longer mono-colored, meaning they are more difficult to slot into decks, but still very worth it
"Food and Fellowship" Precon LOTR-Only Upgrades
If your deck's key engine is a 4cmc commander like Kaalia of the Vast, for example, then you will want to run ramp cards that can get her out faster, which means ramp that is between 0-2cmc so you can cast Kaalia on turn 3 or earlier instead of her usual turn 4