Not only are you protecting your life points without losing your Stadium/Midfielder combination, but you are also giving yourself a bit of protection from direct attacks
With your Poison shenanigans, your opponent is often forced to switch out their Active Pokmon, and relies heavily on Supporters like Sabrina, Cyrus, Iono, or Copycat (including healing from the likes of Erika or Irida in specific decks) to flip the match
Maestros' Totally Safe Hideout (Playtest) Land Land casualty 2 (As this land enters, you may sacrifice a creature with power 2 or greater
With a little research, I found out that it's been such a successful card it even graced the championships in a whole psychic-fuelled deck
Working with Wizards Of The Coast [the publisher of MTG ] was so refreshing, as they give you the space to comfortably go through the process of mining and refining ideas