Torture Chamber, Thumbscrews, Wheel of Torture, The Rack, and those sorts of cards might make for an entertaining theme deck, but too few of them would have reliably contributed to what the deck wants to do
Since March of the Machine: The Aftermath is such a small set, there are tons of variant printings for players to enjoy
Anthem of Champions A simple card with huge appeal to anyone looking to get aggressive with creatures, Anthem of Champions costs just two mana, cheaper than the iconic Glorious Anthem which came before it
Magic: The Gathering is one of the most popular card franchises
This means that, no matter what, the player can return as many lands as they like
Having access to a card that can snipe a pesky enchantment, remove a creature (as long as you do the usually-trivial extra work of having a creature in play), or draw cards when neither of the other modes are relevant, means this spell is never going to rot in your hand