Cheapest priced copy (Modern Horizons): $0.79 at Card Kingdom, near mint, their price list as of .
Scrapyard Recombiner 
Artifact Creature — Construct · 0/0 · Rare · Modern Horizons · #227
Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)
{T}, Sacrifice an artifact: Search your library for a Construct card, reveal it, put it into your hand, then shuffle.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.79 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons | 227 | Rare | $0.79 | $5.99 |
2 rulings from Wizards of the Coast
- 14 June 2019If a creature with modular receives enough -1/-1 counters to cause it to be destroyed by lethal damage or put into its owner’s graveyard for having 0 or less toughness, modular will put a number of +1/+1 counters on the target artifact creature equal to the number of +1/+1 counters on this creature before it left the battlefield. That’s because modular checks the creature as it last existed on the battlefield, and it still had +1/+1 counters on it at that point.
- 14 June 2019You can sacrifice Scrapyard Recombiner to pay the cost of its second ability.