4 loyalty Player 2 - During his or her upkeep, Player 1 uses Teferi, Master of Time to use its first ability to +1 and Loot
Wed already seen treasure-generating artifacts along the lines of Goldvein Pick and Prying Blade, but nothing compares to the sheer value of The Reaver Cleaver
Bred for the Hunt offers a powerful payoff for +1/+1 counter decks by giving them card advantage
This could even include restricting mobile orders and deliveries
Hermit Druid taps for a Green to reveal cards from your library until you show a basic, and then you dump all of those cards into the 'yard and the land goes into your hand
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