Teaching games - small streamlined decks tend to focus on one strategy, and use a few specific tactics, mechanics, to get there - a larger and more unfocused deck can be used to teach new players broader groups of mechanics and the way they interact better than competitive decks can
4 | Repurposing Bay Mana Value: 2U Rarity: Rare Type: Artifact Card Text: 2, Tap, Sacrifice another artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifacts mana value, put that card onto the battlefield, then shuffle
The Glossy and Transparent side makes the information of card inside clearly visible and the Black Matt side protects your private information
You won't find cards featuring this comic-panel expansion symbol inside traditional Marvel Super Heroes main-set Play Boosters
Creatures (16) Planeswalkers (6) Lands (24) Spells (14) Joses list definitely tries to exploit how much less removal people were playing maindeck (not wanting it to get stranded against U/W or line up wrong)