There are cards in the deck to support both of these strategies, like Hama Pashar, Ruin Seeker and Dungeon Map for dungeons or Grave Endeavor and Murder of Crows for the sacrifice/reanimation mechanics
Perhaps the most well-known example of this phenomenon is the a deck can have any number of cards named group, which undermines the four-of restriction that otherwise governs most of Magic
Instant Color tag templates(None) Shadow of Doubt ( can be paid with either or .) Players can't search libraries this turn
Your opponents cant even be upset, after all, youve given them a wonderful gift in exchange for removing their best permanent
If this always made a 2/2, gained you 2, surveiled 2, and investigated for 2, it would probably be a B+
Maybe there's a brew with Agatha of the Vile Cauldron, but this isn't a particularly powerful creature on its own, despite being potentially busted in decks that want the abilities