Cheapest priced copy (Commander 2020): $1.99 at Card Kingdom, near mint, their price list as of .
Vastwood Hydra 
Creature — Hydra · 0/0 · Rare · Commander 2020 · #194
This creature enters with X +1/+1 counters on it.
When this creature dies, you may distribute a number of +1/+1 counters equal to the number of +1/+1 counters on this creature among any number of creatures you control.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $1.99 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2020 | 194 | Rare | $1.99 | — |
| Magic 2014 | 198 | Rare | $2.29 | $4.49 |
3 rulings from Wizards of the Coast
- 1 July 2013You choose how the counters will be distributed when the ability resolves.
- 1 July 2013In some unusual cases, Vastwood Hydra will have enough -1/-1 counters put on it to make its toughness 0 or less. If this happens, the ability will still distribute a number of +1/+1 counters equal to the number of +1/+1 counters on Vastwood Hydra before the -1/-1 counters were put on it. For example, if Vastwood Hydra has two +1/+1 counters on it and three -1/-1 counters are put on it, two +1/+1 counters will be distributed.
- 1 July 2013The ability that triggers when Vastwood Hydra dies doesn’t target any of the creatures. You can choose to put counters on a creature with protection from green, for example.