Professor's Warning 
Instant
Appears in 1,256 of 26,304 decks (4.8%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Sivriss, Nightmare Speaker + Cloakwood Hermit | 2 | -0.04 |
| Cliffhaven Vampire | 2 | -0.04 |
| Lazotep Chancellor | 1 | -0.04 |
| Narfi, Betrayer King | 1 | -0.04 |
| Sludge Strider | 1 | -0.04 |
| Ghost of Ramirez DePietro + Armix, Filigree Thrasher | 1 | -0.04 |
| Disciple of Deceit | 1 | -0.04 |
| Stromkirk Captain | 1 | -0.04 |
| Firja, Judge of Valor | 1 | -0.04 |
| Dargo, the Shipwrecker + Keskit, the Flesh Sculptor | 1 | -0.04 |
| Diregraf Captain | 1 | -0.04 |
| Greta, Sweettooth Scourge | 1 | -0.04 |
| Lazav, Familiar Stranger | 1 | -0.04 |
| Bone-Cairn Butcher | 1 | -0.04 |
| Cormela, Glamour Thief | 1 | -0.05 |
| Elas il-Kor, Sadistic Pilgrim | 1 | -0.05 |
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