mtg marvel bonus cards Magic: The Gathering Super Heroes Card Reveal Includes A Very Powerful Hulk Captain America, First Avenger, Marvel

You should have sufficient redundancy in your things that this 1 for 1 tempo loss card is not something you want

2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil special treatment card of rarity Rare or higher and 1 Traditional Foil Borderless Uncommon card)

This card becomes playable (and strong!) through its Plot ability, which allows you to play it without paying its cost on a later turn when you've already slung some other spells

There are countless big splashy spells

For Competitive EDH With the usual disclaimer that none of these precons are really built with cEDH in mind, Id say Sultai Arisen has the most new cards with potential for competitive success