Collector Tip: If a Pokmon card is worth over 500, it should never be left unprotected
I have so many 4-ring binders at home, but 3 none
When you can hold off most damage, this just becomes an incredible card draw engine
In competitive, it can become a tormentor for dark-type archetypes, and in the release of cards that support the fighter type in the Astral Radiance expansion, the odds of it seeing play in the not-so-distant future aren't that unlikely
See the Top 10 Cards in Journey Together Blackbolt & White Flare (Tentative) Still unreleased, but based on early reveals, this Gen 5-themed dual release could be massive
But, consider a situation where on every turn, one backup will be unusable for every forward you control Im sure you see how troublesome this ability could truly be