Those decks often set up for many turns by simply ramping more lands into play, and Iridescent Vinelasher is both an alternate win-con and an easy way to set up the magic number of 18 life that Valakut needs to combo kill a player in Modern
You may have noticed Strip Mine, Encroaching Wastes, and Dust Bowl on my list
While not every creature with flash is so egregious, there are still a lot of powerful cards out there that can be used to catch your opponents with their shields down
Borderless You can always find a few borderless alternate-art cards in every Magic set, including Streets of New Capenna
Hit your second land drop in a turn, and she digs through your library until she finds an Elf or Elemental card to put in your hand
Contract from Below Is it fair to give the top spot to something you literally cant play in any sanctioned format