Based on what Rasmussen said during the stream, it seems Power-Up will be one of the core mechanics of Marvel Super Heroes
Card not found is just too expensive to use these days and exile effects are rampant anyhow so, thanks WotC, of reminding us how the game used to be fun
Theres only 20 to choose from, so this isnt a comprehensive list, but heres the stars I see: Sword of Forge and Frontier ($45 right now on TCGPlayer) If you havent played with this card yet, its pretty bonkers
Raichu specifications: Pros Encapsulates the joy of Pokmon Common and cheap to buy Cons Pretty weak in gameplay Lots of Pokmon cards are full of joy and merriment - it's one of the game's standout features - but of all the thousands of smiling 'mons out there, this excruciatingly adorable Raichu with a party balloon, from 2012's Next Destinies set, has by far the most glee
Another interesting aspect is that, although this is a 5-color commander, you can easily get away with building this deck with only a few colors, even none if you want