Cheapest priced copy (Secret Lair Drop): $39.99 at Card Kingdom, near mint, their price list as of .
The Fifteenth Doctor 
Legendary Creature — Time Lord Doctor · 3/3 · Rare · Secret Lair Drop · #1584
Whenever The Fifteenth Doctor enters or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand.
The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $27.99 to $39.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secret Lair Drop | 1584 | Rare | $39.99 | $27.99 |