Warhammer 40,000 has deep lore that we've evoked through each card
The fourth is a triggered ability that functions on the battlefield
Kaladesh is meant to be more lighthearted than most of worlds, so maybe there is just someone who is too enthusiastic about their work to let it go in favor of sleeping and that can come back to haunt you
Just having an Overrun or two available is pretty strong, and early in the game, you can defend yourself from spot removal thanks to the regenerate ability
FromTheShire: It's black, your graveyard is your second hand, and this is a great tutor
There's no greater feeling of helplessness in Magic than being without any cards in hand, and being able to make your opponent discard a full hand for just eight mana is very powerful