In Japanese Set and Draft Boosters, each time you get a Mystical Archive card, it is a 50% split of being either the global version (printed in the Japanese language) or the Japanese alternate-art version (which is always exclusively in Japanese language)
This was a pretty big advancement for creature tokens because it meant they were being used not just in individual card design, but in large set structure design
Getting around indestructible is always nice to have
and reanimation targets like Valgavoth, Ardyn the Usurper, and Bringer of the Last Gift
Bloodbraid Challenger is close enough to Bloodbraid Elf to not stain the name, and at a mana value one greater, with the ability to escape, the Challenger hits differently and I'm OK with that
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