Estos son los diseños que me vienen a la cabeza o con los que ya estoy trabajando:
Loki
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Octopus
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Kingpin (le voy a modificar la corbata)
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Bullseye (¡no hay otro!)
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Magneto
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Doctor Muerte
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Thanos
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Veneno
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Cráneo Rojo (me parece muy simple y muy icónico, pero no sé si es un traje reconocible...)
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Duende Verde
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Mística (esto es lo más parecido a lo que tengo en mente)
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Hela
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Reina Blanca (ésta creo que al final no, ¿no?