However, if you look back on flashback and split cards, you'll notice that nearly all of them are at the same rarity as the "normal" version of the effect
Bronze Calendar obviously depicts a colander, but this was intentional, as an homage to the times prior to Unglued when artists/art directors werent on the same page (or canvas, I guess)
Whenever Prince Eric, Expert Helmsman is banished, youll get to banish one of your opponents characters in return
Dark Magician Girl, has one of the more unique effects, however, "allowing you to search the library and making her stronger doing so." While it seems highly unlikely that Magic: The Gathering and Yugioh will ever get an official crossover - now that would be an MTG Universes Beyond set to take notice of - that doesn't stop fans of both games being interested in one another
Resource management is crucial for Magellans strategy to succeed
If you don't have access to Squall, you'll have to use your suite of control cards to slow your opponents down until you can cast Squall.
