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Professor Onyx

· Legendary Planeswalker — Liliana · Duskmourn: House of Horror Commander (DSC)

Decklist Inclusion

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Times Brought

162

Decks Running

In Decks

811

Decklist Inclusion

Format

Multiplayer 1v1

Card text

Professor Onyx

Legendary Planeswalker — Liliana

Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life. +1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard. −3: Each opponent sacrifices a creature with the greatest power among creatures that player controls. −8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.

Loyalty 5

Duskmourn: House of Horror Commander (DSC) · Mythic · Illustrated by Kieran Yanner

Final zone distribution

45 instances

2.2%

Library

35.6%

Battlefield

33.3%

Graveyard

2.2%

Exile

Commanders that played this card

in tracked games

1 Tergrid, God of Fright // Tergrid's Lantern 8 decks
2 Winter, Cynical Opportunist 8 decks
3 Silverquill, the Disputant 7 decks
4 K'rrik, Son of Yawgmoth 6 decks
5 Tinybones, Bauble Burglar 6 decks
6 Kuja, Genome Sorcerer // Trance Kuja, Fate Defied 4 decks
7 Toshiro Umezawa 4 decks
8 Carth the Lion 3 decks
9 Fire Lord Azula 3 decks
10 Liliana, Heretical Healer // Liliana, Defiant Necromancer 3 decks

The "good card" funnel

162 brought · 94 players

Brought to game

162

Ever drawn

Reached battlefield

Still on board at game end

Once cast, 62% 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.

≥ +3.3pp

Players who cast this card win 42% of the time (n=22) , vs 19% when it never left the library (n=95).

Observed gap +23.0pp; 95% confidence interval +3.3pp to +42.7pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

First-cast turn

n=26

15%

46%

T6-9

15%

T10+

Median 6.0 P25 5 · P75 6 · max 11

On curve 77% (10 / 26 cast on T6) Cast same turn as drawn 23%

26 of 100 times cast 26%

Full analysis unlocks as more games are tracked. Stats refresh nightly.

Frequently Asked

Why isn't there more data on this card?

Playgroup Live collects per-card gameplay data from real Commander games. Basic play counts appear once a card reaches 100 tracked games; the full deep-dive page needs a larger, more diverse sample (at least 300 tracked games played by 10 or more different pilots, with no single pilot over 40 percent of the copies). 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 660,000+ Commander games overall, and this card-level play data comes from the Playgroup Live subset of that corpus.