There's more benefit with more opponents
Its still more expensive than it was before the spike, but Im still glad I didnt buy any during that peak
Once per turn, you may turn a card with an inkwell symbol from your hand into face-down ink, becoming a resource that you can turn sideways to summon characters You use 60-card decks in Constructed, 40-card decks in Limited, and the official website has an excellent "how to play" section
Burning-Rune Demon is similar to that and costs one less
If you have a way to exile it from the graveyard before the persist ability resolves, say with Scavenging Ooze, you can fizzle the ability to prevent the creature from coming back
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