Legend says you get eight counters the next turn, but no opponent has survived an unanswered boroid that long
Its the same mechanic and restriction as Outpost Siege, but its a foil to several types of card draw, especially end-step card draw since any cards drawn can only be used on that end step
Amazing reprints to build, customize, and expand your collection

Other printings of Tombstalker $5.35 Tombstalker Future Sight $0.39 Tombstalker Time Spiral Remastered $0.25 Tombstalker The List Most valuable cards in Modern Masters View the full price guide $65.25 Sword of Fire and Ice Modern Masters $48.03 City of Brass Modern Masters $47.00 Kokusho, the Evening Star Modern Masters $36.80 Doubling Season Modern Masters $36.25 Pact of Negation Modern Masters $35.43 Chalice of the Void Modern Masters $34.26 Tarmogoyf Modern Masters $34.00 Sword of Light and Shadow Modern Masters More cards by Aleksi Briclot $400.00 Hellkite Tyrant Ravnica Remastered $319.92 Thoughtseize Time Spiral Remastered $205.79 Borborygmos Enraged Ravnica Remastered $183.78 Thoughtseize Lorwyn $133.26 Ulamog, the Infinite Gyre Rise of the Eldrazi $111.72 Wurmcoil Engine Kaladesh Inventions $83.19 Primeval Titan Time Spiral Remastered $79.56 Liliana Vess Lorwyn Discover Keep browsing SetModern Masters Most valuableTop 100 Magic: The Gathering cards You might also like...

While Trostani and Ghired are obvious homes for this card, I think an unlikely home we might see is Rosheen MeandererRosheen Meanderer, especially with the recent release of Unbound FlourishingUnbound Flourishing