Artifacts are one of Magic: The Gathering's original card types, with 30 years of iteration to get where they are today
When your deck is looking to deal as much damage as you can as possible, Berserk definitely helps
Many of the umbras are valuable but I believe the best three are Bear Umbra, Snake Umbra, and Hyena Umbra
These cards are printed as if they were a card from an old set, using the same art, card frame, text, and set symbol
The most impressive sale we've found coming via Heritage Auctions on 11 April 2024 for $17,500
For example, a copy of Gaea's Cradle from Urza's Saga (the legal version) costs north of $800