new mtg booster box Avatar: The Last Airbender Collector – Mox Boarding House The Gathering cards and 1 Token/Ad card or Art card Magic: The Gathering's new set

I plugged in a couple search queries: "delve," "convoke," "cost less to cast," "rather than pay this spell's mana cost," things like that to see what I could find

I understand that, but then I see all of these life-gaining cards played as well, such as creatures with life-gain when they enter the battlefield (ETB) or other spells

Dragons of Tarkir gave us five newcomers (Dragonlord Silumgar, Dragonlord Atarka, etc.), Core Set 2019 gave us retrains of the originals (Arcades, the Strategist, Nicol Bolas, the Ravager), Strixhaven added five more as the namesakes of the different schools (Tanazir Quandrix, Beledros Witherbloom, etc.), and the five metal dragons from Baldur's Gate were also given the double creature type (Ancient Bronze Dragon, Ancient Copper Dragon, etc.)

These are designed to pretty much hug your cards like a second skin and will be smaller than standard size sleeves at around 64x89mm, just a touch bigger than the card itself