One of the most powerful things having extra cards does for you is giving you the ability to be flexible and adapt based on the battlefield state
On the other hand, theres no color more fitting to have a land sneak into its ranks than green
Collectors always go wild for new Magic: The Gathering sets, and with Magics Foundation set, there are tons of cards to find, especially when you take a look at the Foundations Jumpstart set
So not only is it a cheap option for drawing cards, but it can provide some protection when necessary
As certain sets or letters fill up a cell in the sorter, I move them to a BCW storage box and use index cards to temporarily separate the sets
She gives us card draw and +1/+1 counters, but more than that, a creature with 0 power