First printed in Foundations (2024)
All 6 prints
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Foundations Promos (PFDN) #107p, 2026
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Foundations (FDN) #107, 2024
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Foundations (FDN) #337, 2024
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Foundations (FDN) #399, 2024
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Foundations (FDN) #471, 2024
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Foundations Promos (PFDN) #107s, 2024
Mossborn Hydra 

Creature — Elemental Hydra
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.
In the last 30 days 12.6% of Standard decks played it (12 of 95). Most played in Green Landfall.
Staple
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Standard staples:
main deck, 11% of decks (#64); sideboard, 6% of decks (#42)
Green, Creatures
Last 120 days of MTGO results and paper tournaments.
Legality
Constructed
- Standard Legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Legal
- Historic Legal
- Timeless Legal
- Alchemy Legal
- Penny Dreadful Not legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Legal
- Competitive Brawl Legal