Cheapest priced copy (The Lost Caverns of Ixalan Commander): $0.59 at Card Kingdom, near mint, their price list as of .
Lifecrafter's Bestiary 
Artifact · Rare · Murders at Karlov Manor Commander · #231
At the beginning of your upkeep, scry 1.
Whenever you cast a creature spell, you may pay {G}. If you do, draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
9 printings · $0.59 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 162 | Rare | $0.99 | $3.49 |
| Commander 2020 | 244 | Rare | $0.69 | — |
| The Lost Caverns of Ixalan Commander | 307 | Rare | $0.59 | — |
| Midnight Hunt Commander | 160 | Rare | $0.69 | — |
| Murders at Karlov Manor Commander | 231 | Rare | $0.79 | — |
| New Capenna Commander | 370 | Rare | $0.69 | — |
| Aether Revolt Promos | 162p | Rare | $0.99 | $3.99 |
| Aether Revolt Promos | 162s | Rare | — | $2.29 |
| Wizards Play Network 2023 | 2 | Rare | $0.79 | $2.29 |
3 rulings from Wizards of the Coast
- 9 February 2017The draw step is after the upkeep step, so you'll scry 1 before you draw for the turn.
- 9 February 2017Lifecrafter's Bestiary's second triggered ability resolves before the spell that caused it to trigger. The ability will resolve even if that spell is countered.
- 9 February 2017While resolving Lifecrafter's Bestiary's second triggered ability, you can't pay {G} multiple times to draw multiple cards.