Being able to pull whatever you need from the yard on top of your deck just before your draw phase is awfully good, especially in late game EDH
Toploaders: For ultimate protection, especially for rare or high-value cards, clear regular toploaders (like the 3 x 4 clear regular toploaders 25ct for standard size) offer rigid support
This keeps benched Pokemon that youre building, such as Dratini, safe
All this activity can be traced back to the story of a different cardthe same story that inspired people to buy out #3 Cubone Set: Jungle Printing: Normal Increase: +$10.31 Current Market Price: $16.07 Much like with Psyduck, Cubone saw a huge surge in purchases in late November and early December that drove its price to a new all-time high
That design choice earned Teferi bans across multiple formats
Sometimes your deck only needs one copy of a certain supporter to help get you what you need at the right time, while others like Professor Sycamore are often run with up to 4 copies