Mossborn Hydra
~$13.25 low · ~$80.65 high
Green. Creature — Elemental Hydra
Foundations #107 · Illustrated by Monztre
Foundations #107 · Illustrated by MonztreWhat is Mossborn Hydra worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
This creature enters with a +1/+1 counter on it.
Landfall — Whenever a land you control enters, double the number of +1/+1 counters on this creature.
0/0
Format legality
All 6 printings of Mossborn Hydra
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
 Foundations Promos pfdn #107p· 2026Promorare· Cardmarket €11.33 · €12.93 foil | rare | $14.11 | $14.16 | €11.33€12.93 foil | |
 Foundations fdn #107· 2024rare· Cardmarket €11.05 · €11.93 foil | rare | $13.25 | $14.42 | €11.05€11.93 foil | |
 Foundations fdn #337· 2024Borderlessrare· Cardmarket €15.38 · €25.75 foil | rare | $19.11 | $27.22 | €15.38€25.75 foil | |
 Foundations fdn #399· 2024Borderlessrare· Cardmarket €56.41 foil | rare | No non-foil printing | $80.65 | €56.41 foil | |
 Foundations fdn #471· 2024Extended Artrare· Cardmarket €13.15 · €17.30 foil | rare | $13.75 | $15.56 | €13.15€17.30 foil | |
 Foundations Promos pfdn #107s· 2024Promorare· Cardmarket €13.46 foil | rare | No non-foil printing | $20.45 | €13.46 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Mossborn Hydra
Graded copies on eBay
Searches for the Foundations #399 printing.
Graded prices vary a lot by grade. These links search current listings.
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Card details
- First printed
- 2024
- Printings
- 6
- Mana value
- 3
- EDHREC rank
- #753 on EDHREC (Commander popularity)
- Keywords
- Trample, Double, Landfall
- Artist
- Monztre
What the codes mean
The small print at the bottom of the Foundations card (#107).
0107 · FDN · R · EN
- 0107Collector number: this card's place in the set list.
- FDNSet code for Foundations
- RRare
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (5)
2024-11-08
If Mossborn Hydra somehow enters at the same time as one or more other lands you control, its last ability triggers for each of those lands.
2024-11-08
A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.
2024-11-08
To double the number of +1/+1 counters on Mossborn Hydra, put a number of +1/+1 counters on it equal to the number it already has. Other cards that interact with putting counters on it will interact with this effect accordingly.
2024-11-08
Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).
2024-11-08
A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.
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