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With that idea in mind, could a deck like my Triad of Fates concept include a bunch of cards that have neutral flavor

That doesn't mean I'm not playing to win

This can make a deck grindy and allow a player to outlast the opponent, and in MTG in particular, reanimator or graveyard strategies can dominate any format, such as Dredge decks in Modern or Muldtrotha decks in EDH/Commander

Theros had an enchantment theme (which could have been more prominent and powerful, but thats a different article) and it also had the Heroic keyword, which triggered when you cast a spell targeting a creature

Cancel now counters a spell and makes a drake

Better yet, if you accidentally toss a land into your graveyard while stacking it with corpses, Molderhulk gets the land back for you