Cheapest priced copy (Foundations Commander): $1.79 at Card Kingdom, near mint, their price list as of .
Death Baron 
Creature — Zombie Wizard · 2/2 · Rare · Core Set 2019 · #90
Skeletons you control and other Zombies you control get +1/+1 and have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
9 printings · $1.79 to $23.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shards of Alara | 70 | Rare | $5.99 | $12.99 |
| Foundations Commander | 95 | Rare | $1.79 | — |
| Foundations | 521 | Rare | $4.99 | — |
| Planechase | 25 | Rare | $7.99 | — |
| Core Set 2019 | 90 | Rare | $4.99 | $8.99 |
| Midnight Hunt Commander | 111 | Rare | $3.99 | — |
| Core Set 2019 Promos | 90 | Rare | — | $23.99 |
| Core Set 2019 Promos | 90p | Rare | $8.49 | $10.99 |
| Core Set 2019 Promos | 90s | Rare | — | $8.49 |
3 rulings from Wizards of the Coast
- 13 July 2018A creature that's both a Skeleton and a Zombie will get the bonus only once.
- 13 July 2018Death Baron doesn't normally affect itself. If you manage to turn it into a Skeleton, however, then it will give itself +1/+1 and deathtouch.
- 13 July 2018Because damage remains marked on a creature until it's removed as the turn ends, nonlethal damage dealt to a Skeleton or Zombie you control may become lethal if Death Baron leaves the battlefield during that turn.