Cheapest priced copy (Secrets of Strixhaven Commander): $0.79 at Card Kingdom, near mint, their price list as of .
Benevolent Hydra 
Creature — Hydra · 1/1 · Rare · Jumpstart 2022 · #38
This creature enters with X +1/+1 counters on it.
If one or more +1/+1 counters would be put on another creature you control, that many plus one +1/+1 counters are put on it instead.
{T}, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on another target creature you control.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.79 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 38 | Rare | $2.99 | — |
| Secret Lair Drop | 1889 | Rare | — | $7.99 |
| Secrets of Strixhaven Commander | 124 | Rare | $0.79 | — |
2 rulings from Wizards of the Coast
- 2 December 2022"Put on another creature you control" includes creatures other than Benevolent Hydra that enter the battlefield with +1/+1 counters on them. If another creature would enter the battlefield with a number of +1/+1 counters on it while you control Benevolent Hydra, it enters with that many counters plus one.
- 2 December 2022Each additional Benevolent Hydra you control will increase the number of +1/+1 counters placed on anther creature by one.