mtg hour of devastation cards / Hour of Revelation costs 3 less to cast if there are ten or more nonland permanents on the battlefield Magic The Gathering Hour of

Its also clear that Bria has garnered a lot of attention from Commander enthusiasts

Alternatively, a player could exile one of their own cards to protect it or trigger an "enter the battlefield" effect

I probably dont need to explain why discarding cards to draw cards is the best way to take advantage of whenever you discard triggers, but Id argue its so good and central to the plan that you should basically consider whenever you draw effects to belong in the discard archetype as well

You can create Clue tokens, Treasure tokens, and/or artifact creature tokens that can be easily sacrificed for vigilance, lifelink, or hexproof