Ricardo Silva Archmages Charms restrictive mana cost is the only thing which prevents it from being played in more decks, since the card is extremely versatile, and every mode is useful and regularly used in Modern
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I wouldnt recommend showing up with one of these decks to a cEDH tournament, but if youre looking to scrap them for parts, Ahoy Mateys is your best bet for competitive staples
Three mana is a tad on the expensive side given that you also need to pay the cost of the spell you flashback, but its still doable
Pods for dorks were nasty in casual, multiplayer, Standard and more too