mtg look at the top card of your library Rules Text: play, with, top, card, revealed, 24 cards Pojo's Magic The Gathering Card

Well, each one of the four available has their own theming and represents a distinct chunk of Doctor Who history

Like most Magic: The Gathering cards, the value of Geralf's Masterpiece depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Shadows over Innistrad)

The only upside is that you're not too likely to run into Living Plane as it's on the Reserved List (cards that will never be reprinted which are often expensive)

This is at instant speed so you can do it to dig and find an answer, unlike most of these effects

This card often functions like a 2- or 3-mana counterspell once it resolves since it recoups some of its cost with Treasure tokens, but it can be mana-positive and saves mana for future turns