Their card back is entirely different to the one found on standard Pokemon cards which are standardised to allow any card to be used when deck building (take a look at our Pokemon card back design guide for more details)
The sleeves custom fit ensures that your cards are snug but not too tight, which is essential for easy shuffling and preventing unnecessary wear on card edges
For instance, this next list is a little silly, but youll see what I mean: Creatures (28) 4 Precinct Captain 4 Soldier of the Pantheon 3 Hopeful Eidolon 4 Nyxborn Shieldmate 1 Hero of Iroas 4 Brimaz, King of Oreskos 4 Spirit of the Labyrinth 4 Eidolon of Countless Battles Lands (23) Spells (9) A full third of the deck powers Ethereal Armor up, meaning it is often going to be worth +3/+3, +4/+4, or more
Often, Sealed Deck games will get into stalls where both players have a lot of creatures and neither player can attack very well
This is Quicksilver Sea
First strike makes the creature harder to block, allowing it to reach renown, and then makes the upgrade more valuable because first strike's value is closely tied to the creature's power
