Card Preview

Biomancer's Familiar

· Creature — Mutant · Ravnica Allegiance (RNA)

Buy on TCGplayer

Times Brought

264

Decks Running

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

Biomancer's Familiar

Creature — Mutant

Activated abilities of creatures you control cost {2}

less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}

: The next time target creature adapts this turn, it adapts as though it had no +1/+1 counters on it.

2 / 2

Ravnica Allegiance (RNA) · Rare · Illustrated by Izzy

Final zone distribution

69 instances

2.9%

Library

52.2%

Battlefield

14.5%

Graveyard

5.8%

Exile

Commanders that played this card

in tracked games

1 Thrasios, Triton Hero 17 decks
2 Kenrith, the Returned King 14 decks
3 Kenessos, Priest of Thassa 13 decks
4 Super-Skrull 7 decks
5 Bruce Banner // The Incredible Hulk 5 decks
6 Rograkh, Son of Rohgahh 5 decks
7 Kinnan, Bonder Prodigy 4 decks
8 Sliver Overlord 4 decks
9 The Astonishing Ant-Man 4 decks
10 Codie, Vociferous Codex 3 decks

The "good card" funnel

266 brought · 95 players

Brought to game

266

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 73% 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.

≥ -10.1pp

Players who cast this card win 26% of the time (n=41) , vs 28% when it never left the library (n=141).

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 -1.4pp; 95% confidence interval -10.1pp to +7.2pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=49

14%

18%

10%

20%

29%

T6-9

T10+

Median 4 P25 3 · P75 6 · max 9

On curve 22% (7 / 49 cast on T2) Cast same turn as drawn 48%

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 710,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.