These effects can generally be worded in one of two ways
Its a nice way to make a kind of Eldrazified equipment, especially as I cant imagine Ulamog picking up a sword (okay, maybe I can imagine that, and as awesome as it would be, it wouldnt really fit with the aesthetic)
It's likely going to be one of the most sought-after cards in the set, and understandably so, as it's very strong
Kaladesh is a plane where the non-Green artificers and such as still inspired by nature and natural objects
They do, however, leave you open to getting blown out through land hate like Ghost Quarter, so be careful when putting multiple Auras on one land
If your creatures are large, consider Decisive Denial or Spell Rupture +1/+1 Counter decks like Pir and Toothy or Ezuri, Claw of Progress