So, for example, Warrior of Light, which is a reprint of Jodah, the Unifier, is Standard legal because Jodah was printed in Dominaria United which is still (somehow) Standard legal
In the manga, CXyz Zubaba Saikyo General is used by Yuma Tsukumo
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In theory, this is far from a bad thing, as Alela, Artful Provocateur simply provides added value
You couldn't just know how good this card was
If you trash 4 or more cards with this effect, you may play 1 level 5 or lower purple Digimon card from your trash without paying its memory cost