The "Magician Girl" monsters' main feature is Special Summoning Spellcaster-Type monsters from the player's hand or Graveyard when they are selected as attack targets, redirecting the attack to the Special Summoned monster while halving the attacking monster's ATK. This ability, together with cards like "Magical Dimension" and "Dark Renewal", allows them to easily Summon high-Level Spellcaster-Type monsters.
With the multiple cards that cross-support "Dark Magician" and "Dark Magician Girl", and the multiple Special Summoning effects "Magician Girl" monsters have, "Dark Magician" becomes a tech option for the Deck.
Since the effects of the "Magician Girls" only trigger when they are selected as attack targets, the theme may become somewhat slow. Because of that, cards that force attacks like "Battle Mania", "All-Out Attacks", "Savage Colosseum" and "Yang Zing Unleashed" also become an interesting tech option to the Deck.