It can also play the discard trick for four life and enable you to cast something that was in your hand
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)
In its day it towered over other similar choices and even when it was brought back years later it was competitive
Me : I added "Hmm." That means it's an interesting question to think about
It gives green decks in Commander a way to nab their key lands, like Gaeas Cradle, without dedicating a full card slot to doing so
Triton Calvary gives you enchantment-hate heroism in return-to-hand form, which look, Id rather have destruction or exiling, but that would probably need another color splashed onto this
