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Mossborn Hydra

· Creature — Elemental Hydra · Foundations (FDN)

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Times Brought

941

Decks Running

441

In Decks

—

Decklist Inclusion

—

Format

Multiplayer 1v1

Showing 1v1 (duel) data only. 1v1 is a different format from multiplayer Commander, so these numbers are not comparable.

Card text

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.

0 / 0

Foundations (FDN) · Rare · Illustrated by Monztre

Final zone distribution

238 instances

0.8%

Library

51.3%

Battlefield

22.7%

Graveyard

6.7%

Exile

Commanders that played this card

in tracked games

The "good card" funnel

944 brought · 395 players

Brought to game

944

Ever drawn

220

Reached battlefield

174

Still on board at game end

122

Once cast, 70% of this card is still on the battlefield at game end. This reflects how often it survives removal, not just whether it's a permanent.

≥ +2.1pp

Players who cast this card win 31% of the time (n=140) , vs 25% when it never left the library (n=525).

When players drew this card but left it in hand, they won 31% (n=36).

Read this as correlation, not as the card's contribution. Casting a card means you lived long enough to cast it, so this gap widens with mana value across every card we track.

Observed gap +6.6pp; 95% confidence interval +2.1pp to +11.1pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=174

13%

20%

12%

13%

36%

T6-9

T10+

Median 5.0 P25 3 · P75 7 · max 22

On curve 33% (35 / 174 cast on T3) Cast same turn as drawn 39%

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Play counts appear once a card reaches 100 tracked games, and the full charts need a sample of at least 25 observed games that is not dominated by a single pilot. Until this card clears those bars you're seeing only the basic counts. Stats refresh nightly.

How is Playgroup Live card data collected?

Players using Playgroup Live import their decklists before a game and log card actions as they play. Each cast, zone change, and resolution is recorded as a real game event. Stats on this site are computed from those events, not from decklist scrapes or theorycrafting. Playgroup has recorded 700,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.