Its likely to be one of the meanest cards played in games using just Starter Commander precons
So, as of Strixhaven , we're narrowing the focus a bit to create a new keyword mechanic: Ward [COST] (Whenever this permanent becomes the target of a spell or ability an opponent controls, counter it unless that player pays [COST].) The two most common forms you'll see are costing additional mana (in white, blue, and green) and costing additional life (in black and red)
One possibility is to cast Apocalypse, a card that gets rid of everything, including your hand, leaving you only with Barren Glory, but that needs to be done on your upkeep, so there are options like Leyline of Anticipation or Emergence Zone to give these spells flash
This helps the Raging Bolt ex strategy get deeper into its deck, which is necessary to pull off the deck's most optimal plays