Live Play Data

Mossborn Hydra

· Creature — Elemental Hydra · Foundations (FDN)

Live Inclusion

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Times Brought

1889

Decks Running

798

Median Cast Turn

5.0

Drawn → Played

75%

Format

Multiplayer 1v1

First-cast turn

n=380

10%

19%

13%

38%

T6-9

T10+

Median 5.0 P25 3 · P75 7 · max 15

On curve 30% (73 / 380 cast on T3) Cast same turn as drawn 37%

The "good card" funnel

1889 brought · 685 players

Brought to game

1889

Ever drawn

506

Reached battlefield

380

Still on board at game end

178

Once cast, 47% 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.

≥ +3.5pp

Players who cast this card win 31% of the time (n=344) , vs 22% when it never left the library (n=1153).

When players drew this card but left it in hand, they won 25% (n=112).

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 +8.5pp; 95% confidence interval +3.5pp to +13.5pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

579 instances

2.8%

Library

30.7%

Battlefield

35.8%

Graveyard

11.1%

Exile

Commanders that played this card

in tracked games

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

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 730,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.