That said, Archmage's Charm is so powerful that control decks likely will find it worthwhile to rebuild their mana to fully power up the instant
[40] So, only send in cards in your collection that are valuable to ensure you turn a profit
In particular with Deathrite Shaman, the presence of fetchlands in Modern and Legacy made it way too efficient at providing mana on Turn 2 whilst also breaking the colour pie since you could cast this particular mana creature with black mana
So while this Medusa is probably worse than Lady Tremaine, Tremaine is a great card and there is room in decks for cards that are similar to Tremaine but not quite as good
Familiarise with Your Deck : Play numerous games with your deck to gain familiarity with card interactions
S11A includes 6 CHR cards: Braixen with Serena, Milotic with Wallace, Jynx with Furisode Girl, Gardevoir with Diantha, Smeargle, and Altaria