If you do manage to defeat the Battle, it transforms into a four-power copy of a Creature in a graveyard, which is a massive swing
Secrets of Strixhaven The play boosters with Secrets of Strixhaven contain great sorceries and instants, and are balanced in what is called one of the best sets ever
Having the option to Fog each turn, and perhaps multiple times per round if you use any untapped effects like Sword of the Paruns, means you can effectively shut off combat for as long as Mackenzies in play and you have the mana to pay
Should both the characters and location survive the opponents turn then every single character at the location will allow you draw an additional card
against the right decks, even a dinky little Annihilator 1 creature can really have it's chip damage add up
The most common shapes are O rings, which are just circles, and D rings, which are straight on one side and curved on the other, like a capital D