Many powerful cards reward you for using non-creature spells, such as Young Pyromancer and Thermo-Alchemist
I sleeve all my cards with them and then put regular deck sleeves around the holos or better for double protection
The DCI, as google tells me, is the governing body behind things like banned cards, restricted cards and the way that the competitive gameplay is governed, and the artwork (done by Maro?) is just a scribbled dude in a blindfold holding a mug of beer tossing darts at cards on a dartboard as a self-deprecating way to show off the "rigorous decision-making process" that the DCI uses to ban a card
Conversely, when you knew an established deck like Sultai Energy but read an article by Jadine Klomparens about a Winding Constrictor-based Energy deck that utilizes Hadanas Climb, how quick would you be to accept that
Facebook Marketplace When all else fails, make use of your Facebook account to get onto Facebook Marketplace