Actually, this is probably the best double alter-ego Team-Up card for the moment and the only one that worths the cost.
It costs 3ER but:
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Having Peter Parker on Alter-ego means he can generate an extra for two turns and have 1 extra handsize for a turn.
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Having Cindy Moon on Alter-ego means she can draw 2 extra cards for two turns and have 1 extra handsize for a turn.
(Of course, we are expecting a scenario in which the villain isnt having protection against confusion.)