Magda is surprisingly effective against other Stax and control decks, because she gets to tutor up her scariest threats from your library and put them directly into play without casting them
If collecting all variations is too challenging, you can count any version of a Reverse Holo towards your set
Frequently Asked Questions How many cards are in the Brilliant Stars master set? The Brilliant Stars master set is 327 cards: 172 base cards, 132 reverse holofoils, and 23 secret rares and special-art cards
It also makes cards like Vanquisher's Banner, Rally the Ranks, and Cathars' Crusade that much more powerful since they all create and then pump up your Faeries.
Its main attack, Mind Jack, has a potential damage output of 240 (if your opponent has a full bench), and it can even attack from the bench with Dimensional Hand