As of June 15, the Magic: The Gathering Marvel Super Heroes Jumpstart Booster Box is available to pre-order at Amazon for $114.94
Arena-exclusive cards were introduced for the New Player Experience to help introduce new players into normal gameplay
Third, perhaps the biggest problem with the set is the variance
Collector Booster Display Contents: 12 March of the Machine MTG Collector Boostersget direct access to the coolest cards 15 Magic cards + 1 foil token in each booster 13 Extended-art cards and a legion of other special treatments in every pack 5 Cards of rarity Rare or higher in every pack 1012 Traditional Foil cards in every pack Battle the Machine Legion as Phyrexians invade planes across the Multiverse Commander Deck Display This March of the Machine Commander Deck set includes 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), 10 specialty cards, a 2-card Collector Booster Sample Pack, 1 Foil-Etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 special die, 1 strategy insert, and 1 reference card

Metamorph still ends up copies creatures the vast majority of the time with their being fewer high powered artifacts
When we get to foils, these will be plenty rare enough