If you take their only one-drop, they might lose a mana on turn 1 (and a lot of damage)
We're spoiled for choices these days for what seven mana can buy you, between The Endstone, Ugin, Eye of the Storm, and Sire of Seven Deaths, but turning landfall into card advantage with The Endstone gets a huge nod in a format with Icetill Explorer, which can power out The Endstone on turn five
The lifegain makes it very useful when paired with the likes of Gourmand's Talent or Trudge Garden to create a bigger army and, of course, more fodder tokens to sacrifice
Blistering Firecat I might be giving Blistering Firecat more credit than it deserves, but its hard for me to see 7 potential damage for 4 mana and not want to take the risk of including this red card in my deck
I probably play more enters-the-battlefield tapped lands than most folks, since my local environment with the other RC members is pretty slow, so I see how Tiller Engine might be something that I get a little extra mileage from
Well, Dromokas Command can fight the creature you need to kill or protect your battlefield from a sweeper like Anger of the Gods