Of course, to challenge in Disney Lorcana, the card youre challenging must be Exerted which means that yes, Locations can be challenged
That said, this Grixis spellslinger commander is much more powerful per se than other members from this list
I also want to point out that theres a treatment which isnt on this list: EA versions of the original art for the 8 face commanders, which can only be opened in the bundles that comes with two legendary EA cards, and the Collector Booster Sample packs
Your opponent can still destroy the Sword itself with any number of artifact destruction abilities, but artifact removal is relatively rare and can be played around easily
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Instead of milling being a passive win condition, it became an active one