paper credit card sleeves RFID Blocking One single sleeve is 65mm x 90mm 500 Cashier Depot - Key

Any effects that applied to that permanent will continue to apply to it after it transforms

A great deal of the power of the tribe stems from this card

Rayquaza Promo [158/XY-P] July 2015 Pokmon Center Campaign 46

Pokemon even stamps the rarity of a card with a symbol in the bottom right corner

Outside of a few very specific cards (which will be mentioned first) that require deck sizes above the minimum, all the other reasons you might want to are more fitting to casual magic: Battle of Wits - A win condition that specifically requires you to have more than 3 times the minimum deck size left in your deck to win means starting with about 4 times that minimum, if not more