Cheapest priced copy (Modern Horizons 2): $0.35 at Card Kingdom, near mint, their price list as of .
Young Necromancer 
Creature — Human Warlock · 2/3 · Uncommon · The List · #MH2-110
When this creature enters, you may exile two cards from your graveyard. When you do, return target creature card from your graveyard to the battlefield.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 110 | Uncommon | $0.35 | $0.49 |
| The List | MH2-110 | Uncommon | $0.35 | — |
One ruling from Wizards of the Coast
- 18 June 2021Young Necromancer's reflexive triggered ability (the one that returns a card to the battlefield) triggers when you exile two cards from your graveyard. Players may respond to that ability before the card is returned.