Players must balance the need to power attacks and abilities with the need to conserve cards for future turns
Even if there's nothing tapped for her to kill, her abilities make combat a nightmare, as she can create a blocker or grant first strike to an existing creature
Then you can -3 her and make two 2/1 reach menace Spiders, which is pretty good as well
Commander has reigned as MTGs most popular in-person format for some time, and great new Commander decks release all the time as a result
As a black commander, Tinyboness MV also helps since you can expect this guy to die, a lot
This is in line with the reason I deconstructed Kassandra, Eagle Bearer the possibility of killing a player on Turn 3-5 with Colossus Hammer, Spear of Leonidas and free equips was simply too fast