It can be cast on the cheaper side with evoke, is card-positive, and is a decent body as a 2/2 with flying
the white border gives it a very unique feel that lights up whats around it
For one thing, the mechanic has a ton of different options, and getting players to venture three or four times every turn would not only melt their brains but also take away the feeling of progress that's so much fun in going slowly
If that Army isn't already a Zombie, it becomes a Zombie in addition to its other types
And then there's all of the other incidental untappers, such as Merfolk Skyscout or Pestermite
They Came from the Pipes Two creatures, two cards, and the promise of a lot more value They Came from the Pipes offers a good amount