For MTG proxies, you want at least blue/black core board, around 300 gsm and 0.3 mm, plus decent printing and cutting, to get close to real MTG cards in sleeves
Magic had only been around a few years when the Pokemon TCG started, which catapulted the TCG hobby into the mainstream in a way no one could have expected or prepared for
Standard sizes include Japanese (62x89mm), Standard American (63x88mm), and Mini European (44x68mm), but exact tolerances (0.3mm) are critical for snug fits
When this card is destroyed by battle and sent to the Graveyard: You can change the monster that destroyed it to face-down Defense Position, and if you do, it cannot change its battle position
If Henzie is in play, though, you're getting a slightly cheaper blitz cost even if you're on your first commander run
That being said, Ugins Labyrinth has quite the downside and very specific deck building restraints