Well, the aforementioned interaction with creature-combo pieces like Chord and Company is very powerful in decks that are already running those cards for other reasons
Carnivorous Death-Parrot, Vile Bile, The Fallen Apart, Paper Tiger, Scissors Lizard, Rock Lobster, Double Header These Un-cards are considered mainly for pauper cubes since their power to toughness isnt special in cubes that allow for rares, but four power and a decent toughness for four is actually pretty hard to find outside of a few cards like Rhox Brute, Wildheart Invoker, and Windrider Eel (which is actually a 4/4)
This process has become increasingly important because counterfeit cards continue to grow in popularity worldwide
This red enchantment isnt the easiest payoff to use, but its a consideration for any Rx typal deck with a nice combination of cheap and expensive creatures