Cheapest priced copy (Amonkhet): $0.99 at Card Kingdom, near mint, their price list as of .
Kefnet the Mindful 
Legendary Creature — God · 5/5 · Mythic · Amonkhet · #59
Flying, indestructible
Kefnet can't attack or block unless you have seven or more cards in hand.
{3}{U}: Draw a card, then you may return a land you control to its owner's hand.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.99 to $44.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Amonkhet | 59 | Mythic | $0.99 | $2.99 |
| Duskmourn: House of Horror Commander | 118 | Mythic | $0.99 | — |
| Amonkhet Invocations | 15 | Special | — | $44.99 |
| Amonkhet Promos | 59s | Mythic | — | $6.99 |
2 rulings from Wizards of the Coast
- 18 April 2017Once Kefnet has attacked or blocked, it will remain in combat even if the number of cards in your hand becomes six or fewer.
- 18 April 2017While resolving Kefnet's activated ability, you don't choose which land to return to its owner's hand (or whether you'll return one at all) until you see the card you draw.