Cheapest priced copy (Commander Legends): $0.49 at Card Kingdom, near mint, their price list as of .
Laboratory Drudge 
Creature — Zombie Horror · 3/4 · Rare · Starter Commander Decks · #56
At the beginning of each end step, draw a card if you've cast a spell from a graveyard or activated an ability of a card in a graveyard this turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 78 | Rare | $0.49 | $0.49 |
| Commander Legends | 636 | Rare | $0.49 | $0.49 |
| Starter Commander Decks | 56 | Rare | $0.49 | — |
2 rulings from Wizards of the Coast
- 10 November 2020It doesn't matter where the card is during your end step, as long as it was in a graveyard when you cast it or activated one of its abilities.
- 10 November 2020Laboratory Drudge's ability will trigger at the beginning of each end step whether you've cast a spell from a graveyard or activated an ability of a card in a graveyard that turn or not. You can respond to that ability and do one (or both) of the things to draw a card.