I had a few with the seal on top, which I bought direct from LGSs
Another great Dark World card is Ceruli, which is a Super Rare and can give some amazing combos
Altar of the Brood | $9 Brain Freeze | $8 Crop Rotation | $5 Demonic Consultation | $10 Eerie Ultimatum | $4 Field of the Dead | $40 Gray Merchant of Asphodel | $1 Hymn to Tourach | $0.50 Isochron Scepter | $15 Junji, the Midnight Sky | $0.50 Krark-Clan Ironworks | $20 Llanowar Elves | $0.25 Myrel, Shield of Argive | $19 Narsets Reversal | $2 Ob Nixilis, the Fallen | $4 Phyrexian Altar | $58 Questing Beast | $3 Retrofitter Foundry | $0.50 Sol Ring | $1 Temple of the False God | $0.10 Urzas Saga | $32 Vesuva | $2 Wasteland | $21 Xantcha, Sleeper Agent | $2 Yarok, the Desecrated | $3 Zo-Zu the Punisher | $10 Stick with us here at mtgrocks.com: the best site for Magic: The Gathering coverage!
Legendary Artifact The Ozolith Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith
Thankfully, the weapons meant to destroy them still work too