Cheapest priced copy (Commander 2021): $0.59 at Card Kingdom, near mint, their price list as of .
Dig Through Time 
Instant · Rare · Khans of Tarkir Promos · #36p
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Look at the top seven cards of your library. Put two of them into your hand and the rest on the bottom of your library in any order.
Legal inCommanderPioneer
Restricted inVintage
Banned inModernLegacy
Not legal inBrawlStandardPauper
17 printings · $0.59 to $5.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2021 | 119 | Rare | $0.59 | — |
| Duskmourn: House of Horror Commander | 115 | Rare | $0.59 | — |
| Final Fantasy Commander | 263 | Rare | $0.59 | $1.99 |
| Khans of Tarkir | 36 | Rare | $0.69 | $2.99 |
| Marvel Universe | 54 | Mythic | $0.99 | $3.49 |
| New Capenna Commander | 219 | Rare | $0.59 | — |
| Outlaws of Thunder Junction Commander | 95 | Rare | $0.59 | — |
| Khans of Tarkir Promos | 36p | Rare | $1.29 | $4.49 |
| Khans of Tarkir Promos | 36s | Rare | — | $2.99 |
| Love Your LGS 2021 | 2 | Rare | — | $0.59Out of stock |
| Secret Lair Drop | 97 | Rare | $5.49 | $4.99 |
| The Zeta Set | 16 | Uncommon | — | — |
| The Zeta Set | 137 | Uncommon | — | — |
| The Zeta Set | 258 | Uncommon | — | — |
| Secrets of Strixhaven Commander | 195 | Rare | $0.69 | — |
| Ultimate Masters | 50 | Rare | $0.69 | $2.99 |
| Wilds of Eldraine Commander | 88 | Rare | $0.59Out of stock | — |
3 rulings from Wizards of the Coast
- 19 March 2021You can exile cards to pay only for generic mana, and you can't exile more cards than the generic mana requirement of a spell with delve. For example, you can't exile more than seven cards from your graveyard to cast Treasure Cruise unless an effect has increased its cost.
- 19 March 2021Because delve isn't an alternative cost, it can be used in conjunction with alternative costs, such as flashback. It can also be used to pay for additional costs that include generic mana.
- 19 March 2021Delve doesn't change a spell's mana cost or mana value. For example, Treasure Cruise's mana value is 8 even if you exiled three cards to cast it.