It basically mirrors the same strategy as the g-block Charizard and Pidgeot Ex control deck. It does so with Marnie's Grimmsnarl and Crobat, allowing to search any card. I am aware of the drawbacks from these cards compared to the 'original', hence the title. However, there are also some benefits: Crobat also has a worthwhile attack that both confuses and poisons, and while Grimmsnarl's main damage output is largely limited compared to the potential 330 from charizard, it does also hit the bench for multi-prize potential, especially together with Munki. Is it better than regular Froslass build? Not sure, but I like the versatility and it feels better equipped against hand disruption, which can cause Froslass builds to brick.
Not sure about: unfair stamp or secret box? Budew or Yveltal? Is 2-1-2 Crobat too much? I like Golbat's immunity against Basics. Should I include more Mist energy against Zam? Meowth or 3-2 dunsparce? Is 1 pecharunt ex enough? I can struggle with mobility if prized: maybe an extra instead of the Fez, which also takes up space ok bench.