It also brings back a little bit of that randomness to the game which means its uses vary from game to game
Carbuncle is one of the cutest summons in the series, and would have been great to have some Carbuncle love in the set as a proper creature card
That creature deals damage equal to its power to him
This also puts in work against prowess, Underworld Breach, and Lotus Field decks
In addition, whenever Untethered Express attacks, put a +1/+1 counter on it
If we're going to spend time flipping through our collections, saving pennies to order the cards we need, finding the exact alt-art version of our Commander, choosing the correct color of sleeves, and organizing a night with multiple people in the same place to play a game, it's worth more than a single calculation to figure out how much mana we need, and how much ramp we should run