A player commits a crime as they cast a spell, activate an ability, or put a triggered ability on the stack that targets at least one opponent, at least one permanent, spell, or ability an opponent controls, and/or at least one card in an opponent's graveyard
Loyal Warhound is
Pretty high power level, very hard for some decks to beat and pretty much a kill on sight card regardless of what you are playing
Since these lands will be played in any mono-colored deck and even two-color decks depending on the deck, I can see always needing them
Just like all Collector's booster cards, they are not legal for drafting, but they do give you a fresh way to enjoy the game with mechanics that are exclusive to the Un-sets line
While you can remove Drannith Magistrate, that requires you to actually draw a removal spell (in a 99-card deck), and its controller can't have a way to counter that removal