Animus of Predation Disciple of the Old Ways Elvish Archers Ember Weaver Emerald Dragonfly Glissa Sunseeker Granger Guildmage Hornet Cobra Land Leeches Majestic Myriarch Mammoth Harness Mirri, Cat Warrior Root Spider Selective Adaptation Spitting Slug Thornscape Apprentice
First of all, I definitely recommend using tweezers to apply the stamps
Of course, there are stories of this thing completely changing the game, but in general, there is usually enough enchantment removal floating around that most of the time this will probably do nothing (expect possibly draw out that enchantment removal, but you dont usually want to approach the game like that, especially in multiplayer)
Be prepared to end the game in just one attack
Looking at the details it seems like the artist, Reddit user Lord-Keithulhu, carved into the cards themselves to further create depth and features that take this alter to the next level