Dreamstone Hedron proved to be too expensive for Constructed play, and Hedron Archive looks like it might be too
Copy for Rionya, Fire Dancer, Sandstorm Crasher and Thurid, Mare of Destiny
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That is, until you take into account the cards first ability - The Power of Evil, which allows the player to play Chernabog, Evildoer for one less ink per character card they have in their discard
You can run Blood Artist and such
I think if you want an Overrun it's one of those things where the effect is specific enough that you lean into it in order to get the best outcome