After a particular bruising defeat at the hands of a Ringbearer, I've felt like Sauron when "the magnitude of his own folly [was] revealed to him in a blinding flash." But the mechanic just as often descends into incoherence
Its so good, I almost expect all Ally decks to run it
Lets compare their value: While Fervor is cheaper and on a noncreature permanent (thus making it harder to remove), Anger provides a 2/2 body that wants to be removed
However the Minion Reflector trigger still goes on the stack, and so copies the Last Known Information about the creature, and so it copies all 'copiable values'--specifically 'Other effects (including type-changing and text-changing effects), status, and counters are not copied.' Which means that if we sac each copy of March of the Machines, the Black Lotus tokens will enter the battlefield as non-creature artifacts
The Masamune This three-cost legendary artifact Equipment with an equip of two is next