For example, if you're playing a control deck featuring both Kefnet the Mindful and Hour of Revelation, you don't have to worry about your creature going away when you sweep the board
Previously we had equal numbers of Commons, Uncommons & Rares in a set, so that when you were done collecting all the Rares you had an excessive number of Commons
For eBay, look at the last 510 sold listings, not the active asks
Cast it for X=7+ and use the ultimate as soon as it enters
Bramblin #20Common $0.16 Deerling - 016/162 #16Common $0.10 Snom - 045/162 #45Common $0.18 Whimsicott #15Rare $0.11 Rapidash #27Uncommon $0.20 Shaymin #13Uncommon $0.16 Walking Wake ex - 050/162 #50Double Rare $0.61 Croconaw #40Common $0.27 Torracat #33Common $0.22 Zeraora #57Uncommon $0.19 Paldea Collection [Sprigatito/Miraidon ex] $72.48 Paldea Collection [Quaxly/Miraidon ex] $51.41 Paldea Collection [Set of 3] (Miraidon ex) Paldea Collection [Fuecoco/Miraidon ex] $65.43 Paldea Legends Tin [Miraidon ex] (International Version) $47.18 Paldea Legends Tin [Miraidon ex] $36.77 League Battle Deck [Miraidon ex] $19.04 ex Battle Deck [Miraidon ex] $14.31 Miraidon #121Rare $0.10 Miraidon #80Rare $0.20 Miraidon #69Uncommon $0.15 Miraidon #3Promo $0.60 Miraidon #44Uncommon $0.11 Miraidon #123Common $0.21 Miraidon #52Rare $0.19 Miraidon #27Uncommon $0.30 Miraidon #28Rare $0.09 Miraidon - 013 #13Promo $7.09

Adding to that, this time around we have Amazing Rares which can also show up in the Reverse Holo slot