They got some inspiration from Kaldheim s foretell mechanic (which also lets you set aside spells and cast them later), and that's how they came up with the plot mechanic
While you don't want many cards that are not directly helping with your game plan this is a bit too convenient and powerful to pass up on when you have the colours for it
You can exile cards, and then cast them this turn, so you get the ability to cast the occasional card, or drop the occasional land with your Human Archer Rogue
Additionally, there are more than enough ways to get to the number you're looking for
Jun 18, 2025 How to Make a Fling Deck, With Juri, Master of the Revue Build a deck based around the popular Fling archetype with this handy guide, featuring Juri, Master of the Revue