dark hex card sleeves Exact Fit Black – Vault X US these sleeves are as slick and stylish as a Duellist could dream Yu-Gi-Oh!: Dark Hex Card Sleeve

I thought this was pretty much confirmed by the 20th anniversary being celebrated in 2016

We saw this in Ascended Heroes and Phantasmal Flames

Either speed up your decks execution time or consider retrieving fewer than 3 lands until you can avoid discarding your cards

MTG Proxy Quick Facts Card size 2.5 x 3.5 in (63 x 88 mm) Stock Premium 16pt that sleeves like a real deck Turnaround Printed and shipped in 2-3 days Best for Playtesting, casual play, custom commanders Order size One card or a full playset Note For personal and playtest use, not tournament-legal Built for Kitchen-Table and Commander Players Proxies let you play the cards you want without spending hundreds on singles

The base game is free, after all, so I figured this must just be the way it has to be