wotc
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.
MTG · Card
◇ Catalog #107p
Mossborn Hydra
pfdn·#107p·rare·nonfoil
Illus. Monztre
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in vault
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for trade
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wishlisted
Jan '26
4 mo ago
Value
$17.12$0 (-2.6%)
30 days high $18 · low $17
Volatility · stable
EUR€11.42USD$17.12
NM$17.1
Where to buy / sell
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Played in EDH
EDHrec rank #852 · Common include
Variants
Gameplay
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.
0/0
Legalities
tlrlegal
duellegal
brawllegal
pennylegal
PreDH
Rulings · 5
wotc
A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.
wotc
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.
Notes
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Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Monztre
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